Char Shoben of the Tail Company constructs a tail that can be controlled by a smartphone app to make it wag or swish, in London, Britain February 28, 2019. Picture taken February 28, 2019. REUTERS/Stuart McDill

Char Shoben of the Tail Company constructs a tail that can be controlled by a smartphone app to make it wag or swish, in London, Britain February 28, 2019. Picture taken February 28, 2019. REUTERS/Stuart McDill

Andrew and Char Shoben, founders of the Tail Company, pose for the camera wearing tails that can be controlled by a smartphone app to make them wag or swish, in London, Britain February 28, 2019. Picture taken February 28, 2019. REUTERS/Stuart McDill

Andrew and Char Shoben, founders of the Tail Company, pose for the camera wearing tails that can be controlled by a smartphone app to make them wag or swish, in London, Britain February 28, 2019. Picture taken February 28, 2019. REUTERS/Stuart McDill

A combination photo shows President Donald Trump finger wagging while speaking at a campaign rally at the Columbia Regional Airport in Columbia, Missouri, U.S., November 1, 2018. REUTERS/Carlos Barria

U.S. President Donald Trump wags his finger as he stands with his daughter and advisor Ivanka Trump, former New York Yankees baseball player Mariano Rivera and three time Olympic gold medal volleyball player Misty May-Treaner as young participants run during the White House Sports and Fitness Day event on the South Lawn of the White House in Washington, U.S., May 30, 2018. REUTERS/Jonathan Ernst

Children pet the dog "Petey" at MS 88 middle school in the neighborhood of Brooklyn in New York, U.S., August 10, 2017. When distressed students at MS 88 middle school in Brooklyn end up at the principal's office, Petey Parker often totters in, tail wagging, to comfort them. The rescued shih tzu mix is the darling of about 1,400 students who call out his name and lean over to pet him if they're having a bad day. "He's like a guidance counselor but in a dog form," said Maciel, an 8th grader at MS 88, donning a Principal's council t-shirt with an image of Petey's face printed on it. Petey joined the MS 88 community last December as one of the first participants in the Comfort Dog program, which is expanding to 30 more New York schools this fall after a pilot of seven last year. REUTERS/Eduardo Munoz

Children share a moment with the dog "Petey" at MS 88 middle school in the neighborhood of Brooklyn in New York, U.S., August 10, 2017. When distressed students at MS 88 middle school in Brooklyn end up at the principal's office, Petey Parker often totters in, tail wagging, to comfort them. The rescued shih tzu mix is the darling of about 1,400 students who call out his name and lean over to pet him if they're having a bad day. "He's like a guidance counselor but in a dog form," said Maciel, an 8th grader at MS 88, donning a Principal's council t-shirt with an image of Petey's face printed on it. Petey joined the MS 88 community last December as one of the first participants in the Comfort Dog program, which is expanding to 30 more New York schools this fall after a pilot of seven last year. REUTERS/Eduardo Munoz

Children walk the dog "Petey" at MS 88 middle school in the neighborhood of Brooklyn in New York, U.S., August 10, 2017. When distressed students at MS 88 middle school in Brooklyn end up at the principal's office, Petey Parker often totters in, tail wagging, to comfort them. The rescued shih tzu mix is the darling of about 1,400 students who call out his name and lean over to pet him if they're having a bad day. "He's like a guidance counselor but in a dog form," said Maciel, an 8th grader at MS 88, donning a Principal's council t-shirt with an image of Petey's face printed on it. Petey joined the MS 88 community last December as one of the first participants in the Comfort Dog program, which is expanding to 30 more New York schools this fall after a pilot of seven last year. REUTERS/Eduardo Munoz

The dog "Petey" at MS 88 middle school in the neighborhood of Brooklyn in New York, U.S., August 10, 2017. When distressed students at MS 88 middle school in Brooklyn end up at the principal's office, Petey Parker often totters in, tail wagging, to comfort them. The rescued shih tzu mix is the darling of about 1,400 students who call out his name and lean over to pet him if they're having a bad day. "He's like a guidance counselor but in a dog form," said Maciel, an 8th grader at MS 88, donning a Principal's council t-shirt with an image of Petey's face printed on it. Petey joined the MS 88 community last December as one of the first participants in the Comfort Dog program, which is expanding to 30 more New York schools this fall after a pilot of seven last year. REUTERS/Eduardo Munoz

The dog "Petey" share a moment with children at MS 88 middle school in the neighborhood of Brooklyn in New York, U.S., August 10, 2017. When distressed students at MS 88 middle school in Brooklyn end up at the principal's office, Petey Parker often totters in, tail wagging, to comfort them. The rescued shih tzu mix is the darling of about 1,400 students who call out his name and lean over to pet him if they're having a bad day. "He's like a guidance counselor but in a dog form," said Maciel, an 8th grader at MS 88, donning a Principal's council t-shirt with an image of Petey's face printed on it. Petey joined the MS 88 community last December as one of the first participants in the Comfort Dog program, which is expanding to 30 more New York schools this fall after a pilot of seven last year. REUTERS/Eduardo Munoz

The dog "Petey" walks at MS 88 middle school in the neighborhood of Brooklyn in New York, U.S., August 10, 2017. When distressed students at MS 88 middle school in Brooklyn end up at the principal's office, Petey Parker often totters in, tail wagging, to comfort them. The rescued shih tzu mix is the darling of about 1,400 students who call out his name and lean over to pet him if they're having a bad day. "He's like a guidance counselor but in a dog form," said Maciel, an 8th grader at MS 88, donning a Principal's council t-shirt with an image of Petey's face printed on it. Petey joined the MS 88 community last December as one of the first participants in the Comfort Dog program, which is expanding to 30 more New York schools this fall after a pilot of seven last year. REUTERS/Eduardo Munoz

The dog "Petey" at MS 88 middle school in the neighborhood of Brooklyn in New York, U.S., August 10, 2017. When distressed students at MS 88 middle school in Brooklyn end up at the principal's office, Petey Parker often totters in, tail wagging, to comfort them. The rescued shih tzu mix is the darling of about 1,400 students who call out his name and lean over to pet him if they're having a bad day. "He's like a guidance counselor but in a dog form," said Maciel, an 8th grader at MS 88, donning a Principal's council t-shirt with an image of Petey's face printed on it. Petey joined the MS 88 community last December as one of the first participants in the Comfort Dog program, which is expanding to 30 more New York schools this fall after a pilot of seven last year. REUTERS/Eduardo Munoz

Ivy, the wife of Rene Desierto, who local police suspects to be a drug pusher, cries near the scene after her husband's body was found lying on a street with his head wrapped with masking tape and a cardboard sign that reads "Pusher wag tularan", or "pusher don't imitate", in Manila, Philippines November 22, 2016. According to local police, a sachet of Methamphetamine, locally known as Shabu, was recovered from the body. REUTERS/Czar Dancel?

A relative holds a cardboard next to a picture of Florjohn Cruz inside a house where he was killed in a police drugs buy bust operation in Manila, Philippines late October 20, 2016. The cardboard, that family said was found in the house where Florjohn was killed, reads "Pusher At Adik, Wag Tularan", which translates to "I am a (drug) pusher and addict, don't be like me". REUTERS/Damir Sagolj

People look from inside a jeepney as police investigate around the body of a man killed by unknown gunmen in Manila, Philippines early October 18, 2016. A sign on a cardboard reading "Pusher Ako, Wag Tularan", which translates to "I am a (drug) pusher, don't be like me" was found near the body. REUTERS/Damir Sagolj

ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF INJURY OR DEATHThe body of a man killed by unknown gunmen is taken away in Manila, Philippines early October 18, 2016. A sign on a cardboard reading "Pusher Ako, Wag Tularan", which translates to "I am a (drug) pusher, don't be like me" was found near the body. REUTERS/Damir Sagolj

People look from inside a store as police investigate near the body of a man killed by unknown gunmen in Manila, Philippines early October 18, 2016. A sign on a cardboard reading "Pusher Ako, Wag Tularan", which translates to "I am a (drug) pusher, don't be like me" was found near the body. REUTERS/Damir Sagolj

Onlookers gather as police investigate the scene around a body of a man killed by unknown gunmen in Manila, Philippines early October 18, 2016. A sign on a cardboard found near the body reads, "Pusher Ako, Wag Tularan", which translates to "I am a (drug) pusher, don't be like me." REUTERS/Damir Sagolj

A street vendor is comforted at the scene where a man was killed shortly before midnight by unknown gunmen in Manila, Philippines early October 18, 2016. A sign on a cardboard found near the body reads, "Pusher Ako, Wag Tularan", which translates to "I am a (drug) pusher, don't be like me." REUTERS/Damir Sagolj

Football Soccer - France v Iceland - Euro 2016 - Quarter final - Stade de France, Saint Denis, Paris, France - 3/7/16 - Wives and girlfriends of France team pose for a photo as they wait for match against Iceland to start. REUTERS/Charles Platiau

Football Soccer - France v Iceland - Euro 2016 - Quarter final - Stade de France, Saint Denis, Paris, France - 3/7/16 - Wives and girlfriends of France team pose for a photo as they wait for match against Iceland to start. REUTERS/Charles Platiau

Theatrical animal trainers Bill and Dorothy Berloni participate in the "Wags to Riches" panel during the cable portion of the Television Critics Association Summer Press Tour in Beverly Hills, California July 30, 2015. REUTERS/David McNew

Theatrical animal trainers Bill and Dorothy Berloni participate in the "Wags to Riches" panel during the cable portion of the Television Critics Association Summer Press Tour in Beverly Hills, California July 30, 2015. REUTERS/David McNew

Protesters sit on the street as they block the main street to the financial Central district in front of the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

A protester lies on the street as she joins others in blocking the main street to the financial Central district in front of the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Riot police leave an area in front of the government headquarters as protesters block the main street to the financial Central district in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Riot police leave an area in front of the government headquarters as protesters block the main street to the financial Central district in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Riot police leave an area in front of the government headquarters as protesters block the main street to the financial Central district in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

A photojournalist takes a rest as protesters block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS MEDIA)

Protesters block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters march as they block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters stand on a bridge as they block the main area outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters move a traffic sign as they try to block a street near the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters walk by a closed HSBC bank branch near the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS BUSINESS)

Protesters block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Protesters block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS TPX IMAGES OF THE DAY)

Protesters march as they block the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Hong Kong democracy protesters defied volleys of tear gas and police baton charges to stand firm in the centre of the global financial hub on Monday, one of the biggest political challenges for Beijing since the Tiananmen Square crackdown 25 years ago. China wagged its finger at the student protesters, and warned against any foreign interference as they massed again in business and tourist districts of the city in the late afternoon. REUTERS/Carlos Barria (CHINA - Tags: CIVIL UNREST POLITICS)

Mayor Ed Murray (C) celebrates during a Seattle City Council meeting just after the council voted on raising the minimum wage to $15 per hour in Seattle, Washington June 2, 2014. The Seattle city council voted unanimously on Monday to approve a sharp increase in the city's minimum wage to $15 an hour over the next seven years, marking the first time a major U.S. city has committed to such a high base level of pay. REUTERS/David Ryder (UNITED STATES - Tags: BUSINESS EMPLOYMENT)

A dog wags its tail as it competes in the Surf City surf dog competition in Huntington Beach, California, September 29, 2013. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SPORT ANIMALS SOCIETY)

A dog wags his tail as he looks at the treat his handler is holding during the 137th Westminster Kennel Club Dog Show in New York, February 12, 2013. More than 2,700 prized dogs will be on display at the annual canine competition. Two new breeds, the Russell terrier and the Treeing Walker coonhound, will be introduced in the contest. REUTERS/Carlo Allegri (UNITED STATES - Tags: ANIMALS SOCIETY)

Poland's Pawel Spisak rides Wag as he competes in the Eventing Cross Country equestrian event at the London 2012 Olympic Games in Greenwich Park, July 30, 2012. REUTERS/Mike Hutchings (BRITAIN - Tags: SPORT OLYMPICS EQUESTRIANISM)

Poland's Pawel Spisak rides Wag as he competes in the Eventing Cross Country equestrian event at the London 2012 Olympic Games in Greenwich Park, July 30, 2012. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT OLYMPICS EQUESTRIANISM)

Poland's Pawel Spisak rides Wag as he competes in the Eventing Cross Country equestrian event at the London 2012 Olympic Games in Greenwich Park, July 30, 2012. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT OLYMPICS EQUESTRIANISM)

Pawel Spisak of Poland rides Wag during the equestrian Eventing Individual Dressage Day 2 in the Greenwich Park during the London 2012 Olympic Games, July 29, 2012. REUTERS/Mike Hutchings (BRITAIN - Tags: SPORT EQUESTRIANISM OLYMPICS)

Pawel Spisak of Poland rides Wag during the equestrian Eventing Individual Dressage Day 2 in the Greenwich Park during the London 2012 Olympic Games, July 29, 2012. REUTERS/Mike Hutchings (BRITAIN - Tags: SPORT EQUESTRIANISM OLYMPICS)

Jamaican sprinter Usain Bolt poses in front of ancient Colosseum in Rome May 29, 2012. The real Usain Bolt will make a return appearance at Rome's Diamond League meeting on Thursday, according to the Jamaican sprinter who got tongues wagging last week when he failed to break 10 seconds over 100 metres in Ostrava. Picture taken on May 29, 2012. REUTERS/Giancarlo Colombo/Pool (ITALY - Tags: SPORT ATHLETICS)

Jamaican sprinter Usain Bolt wears his shoes during a training session at the Foro Italico stadium in Rome May 29, 2012. The real Usain Bolt will make a return appearance at Rome's Diamond League meeting on Thursday, according to the Jamaican sprinter who got tongues wagging last week when he failed to break 10 seconds over 100 metres in Ostrava. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT ATHLETICS)

Jamaican sprinter Usain Bolt holds his shoes during a training session at the Foro Italico stadium in Rome May 29, 2012. The real Usain Bolt will make a return appearance at Rome's Diamond League meeting on Thursday, according to the Jamaican sprinter who got tongues wagging last week when he failed to break 10 seconds over 100 metres in Ostrava. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT ATHLETICS)

Jamaican sprinter Usain Bolt (R) watches a video recording of a practice sprint on a video camera with his staffers during a training session at the Foro Italico stadium in Rome May 29, 2012. The real Usain Bolt will make a return appearance at Rome's Diamond League meeting on Thursday, according to the Jamaican sprinter who got tongues wagging last week when he failed to break 10 seconds over 100 metres in Ostrava. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT ATHLETICS)

Jamaican sprinter Usain Bolt runs during a training session, as his staffers watch a recording of his practice on a video camera, at the Foro Italico stadium in Rome May 29, 2012. The real Usain Bolt will make a return appearance at Rome's Diamond League meeting on Thursday, according to the Jamaican sprinter who got tongues wagging last week when he failed to break 10 seconds over 100 metres in Ostrava. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT ATHLETICS)

Jamaican sprinter Usain Bolt attends a training session at the Foro Italico stadium in Rome May 29, 2012. The real Usain Bolt will make a return appearance at Rome's Diamond League meeting on Thursday, according to the Jamaican sprinter who got tongues wagging last week when he failed to break 10 seconds over 100 metres in Ostrava. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT ATHLETICS)

Jamaican sprinter Usain Bolt runs during a training session at the Foro Italico stadium in Rome May 29, 2012. The real Usain Bolt will make a return appearance at Rome's Diamond League meeting on Thursday, according to the Jamaican sprinter who got tongues wagging last week when he failed to break 10 seconds over 100 metres in Ostrava. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT ATHLETICS)