Tuna sushi is served on a conveyor belt at the “Kura Sushi” chain in Tokyo, Japan, March 13, 2023. The Japanese conveyor belt sushi chain said on Monday that they started using an artificial intelligence camera system early this month to catch unhygienic pranks after a video of a man licking a soy sauce bottle filmed at one of their restaurants in central Japan went viral online. REUTERS/Kim Kyung-Hoon 

A view shows Big Hit burgers, the new alternative to the Big Mac, at a restaurant of the Vkusno & tochka fast food chain, the Russian successor brand to McDonald's, in Moscow, Russia March 1, 2023. REUTERS/Evgenia Novozhenina 

A view shows self-service kiosks advertising the Big Hit burger, the new alternative to the Big Mac, at a restaurant of the Vkusno & tochka fast food chain, the Russian successor brand to McDonald's, in Moscow, Russia March 1, 2023. REUTERS/Evgenia Novozhenina 

People walk near a self-service kiosk advertising the Big Hit burger, the new alternative to the Big Mac, at a restaurant of the Vkusno & tochka fast food chain, the Russian successor brand to McDonald's, in Moscow, Russia March 1, 2023. REUTERS/Evgenia Novozhenina 

A man holds a Big Hit burger, the new alternative to the Big Mac, at a restaurant of the Vkusno & tochka fast food chain, the Russian successor brand to McDonald's, in Moscow, Russia March 1, 2023. REUTERS/Evgenia Novozhenina 

An employee cooks fries at a restaurant of the Vkusno & tochka fast food chain, the Russian successor brand to McDonald's, in Moscow, Russia March 1, 2023. REUTERS/Evgenia Novozhenina 

A view shows a Big Hit burger, the new alternative to the Big Mac, at a restaurant of the Vkusno & tochka fast food chain, the Russian successor brand to McDonald's, in Moscow, Russia March 1, 2023. REUTERS/Evgenia Novozhenina 

A combination picture shows pedestrians walking past a closed fast food restaurant operating under the McDonald's brand on November 28, 2022 and the same restaurant, which reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan, January 23, 2023. REUTERS/Pavel Mikheyev 

A pedestrian walks past a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. A sign reads: "We are open". REUTERS/Pavel Mikheyev 

A view shows a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. A sign reads: "We are open". REUTERS/Pavel Mikheyev 

An employee waits for customers at a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. REUTERS/Pavel Mikheyev 

Customers make an order at a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. REUTERS/Pavel Mikheyev 

Employees remove snow outside a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. A sign reads: "We are open". REUTERS/Pavel Mikheyev TPX IMAGES OF THE DAY 

A customer takes his meal at a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan, January 23, 2023. REUTERS/Pavel Mikheyev 

A view shows a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. A sign reads: "We are open". REUTERS/Pavel Mikheyev 

A view shows a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. A sign reads: "We are open". REUTERS/Pavel Mikheyev 

A man has a meal at a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. REUTERS/Pavel Mikheyev 

People walk towards a fast food restaurant, which used to operate under the McDonald's brand and reopened with no branding weeks after the U.S. company left the local market, in Almaty, Kazakhstan January 23, 2023. A sign reads: "We are open". REUTERS/Pavel Mikheyev 

Combination image shows restaurant owner Ugur Yumusakbas (L) and his restaurant manager Nezir Ture presenting their home made doner kebab which is for sale for a prize of ten euros at the Ton Bul Grill restaurant in Frankfurt, Germany, November 10, 2022. The prices for fast food hit new levels as snack bars as well as restaurants struggle under increasing inflation and energy prices. REUTERS/Kai Pfaffenbach 

Restaurant owner Ugur Yumusakbas and his restaurant manager Nezir Ture present their homemade doner kebab which is for sale for a prize of ten euros at the Ton Bul Grill restaurant in Frankfurt, Germany, November 10, 2022. The prices for fast food hit new levels as snack bars as well as restaurants struggle under increasing inflation and energy prices. REUTERS/Kai Pfaffenbach 

A homemade doner kebab, which is for sale for a prize of ten euros at the Ton Bul Grill restaurant, is presented in Frankfurt, Germany, November 10, 2022. The prices for fast food hit new levels as snack bars as well as restaurants struggle under increasing inflation and energy prices. REUTERS/Kai Pfaffenbach 

Restaurant owner Ugur Yumusakbas and his restaurant manager Nezir Ture present their homemade doner kebab which is for sale for a prize of ten euros at the Ton Bul Grill restaurant in Frankfurt, Germany, November 10, 2022. The prices for fast food hit new levels as snack bars as well as restaurants struggle under increasing inflation and energy prices. REUTERS/Kai Pfaffenbach 

Restaurant owner Ugur Yumusakbas and his restaurant manager Nezir Ture present their homemade doner kebab which is for sale for a prize of ten euros at the Ton Bul Grill restaurant in Frankfurt, Germany, November 10, 2022. The prices for fast food hit new levels as snack bars as well as restaurants struggle under increasing inflation and energy prices. REUTERS/Kai Pfaffenbach 

Soccer Football - Champions League - Group A - Liverpool v Napoli - Anfield, Liverpool, Britain - November 1, 2022 A Liverpool fan with pin badges on his jacket is seen in a fast food restaurant near the stadium before the match REUTERS/Carl Recine 

Ihor, 50, who said he used to own a restaurant that was destroyed during the fighting between Russian troops and Ukrainian army smiles as he talks to a customer at his roadside fast food shop, amid Russia's attack on Ukraine, in the newly recaptured town of Sviatohirsk, in Donetsk region, Ukraine October 9, 2022. REUTERS/Zohra Bensemra 

Ihor, 50, who said he used to own a restaurant that was destroyed during the fighting between Russian troops and Ukrainian army, hugs his friend at his roadside fast food shop, amid Russia's attack on Ukraine, in the newly recaptured town of Sviatohirsk, in Donetsk region, Ukraine October 9, 2022. REUTERS/Zohra Bensemra TPX IMAGES OF THE DAY 

Ihor, 50, who said he used to own a restaurant that was destroyed during the fighting between Russian troops and Ukrainian army, holds meat kebab as he opened a roadside fast food shop, amid Russia's attack on Ukraine, in the newly recaptured town of Sviatohirsk, in Donetsk region, Ukraine October 9, 2022. REUTERS/Zohra Bensemra 

Fries prepared by the Flippy 2 robot are seen at a lab of manufacturer Miso Robotics Inc in Pasadena, California, U.S. September 27, 2022 in this screen grab from a REUTERS video. Sandra Stojanovic/REUTERS TV via REUTERS 

The Flippy 2 robot takes fries out of a vat of oil at a lab of manufacturer Miso Robotics Inc in Pasadena, California, U.S. September 27, 2022 in this screen grab from a REUTERS video. Sandra Stojanovic/REUTERS TV via REUTERS 

The Flippy 2 robot takes fries out of a vat of oil at a lab of manufacturer Miso Robotics Inc in Pasadena, California, U.S. September 27, 2022, in this screen grab from a REUTERS video. Sandra Stojanovic/REUTERS TV via REUTERS 

Mike Bell, CEO of Miso Robotics Inc, stands in a lab at the company?s headquarters in Pasadena, California, U.S. September 27, 2022 in this screen grab from a REUTERS video. Sandra Stojanovic/REUTERS TV via REUTERS 

Customers use self-service kiosks as they visit the fast food restaurant Vkusno & tochka in Moscow, Russia September 19, 2022. REUTERS/Evgenia Novozhenina 

Customers use self-service kiosks as they visit the fast food restaurant Vkusno & tochka in Moscow, Russia September 19, 2022. REUTERS/Evgenia Novozhenina 

People visit the fast food restaurant Vkusno & tochka in Moscow, Russia September 19, 2022. REUTERS/Evgenia Novozhenina 

Ruth Remolacio and Michael Lasky pose with their son Jericho Lasky dressed as a character of the Filipino fast food restaurant Jollibee's on the convention floor at Comic-Con International in San Diego, California, U.S., July 21, 2022. REUTERS/Bing Guan 

A logo is pictured in front of a fast food chain restaurant Five Guys in Geneva, Switzerland, May 31, 2022. REUTERS/Denis Balibouse 

Mc Donald’s and Five Guys logos are pictured outside fast food restaurants in Geneva, Switzerland, May 31, 2022. REUTERS/Denis Balibouse 

Mc Donald’s and Five Guys logos are pictured outside fast food restaurants in Geneva, Switzerland, May 31, 2022. REUTERS/Denis Balibouse 

Mc Donald’s and Five Guys logos are pictured outside fast food restaurants in Geneva, Switzerland, May 31, 2022. REUTERS/Denis Balibouse 

Members of the Iraqi civil defense team work at the site of collapse of a fast food restaurant after an explosion caused by a leak from cooking gas, in Baghdad, Iraq May 29, 2022. REUTERS/Thaier Al-Sudani 

Members of the Iraqi civil defense team work at the site of collapse of a fast food restaurant after an explosion caused by a leak from cooking gas, in Baghdad, Iraq May 29, 2022. REUTERS/Thaier Al-Sudani 

Members of the Iraqi civil defense team work at the site of collapse of a fast food restaurant after an explosion caused by a leak from cooking gas, in Baghdad, Iraq May 29, 2022. REUTERS/Thaier Al-Sudani 

Members of the Iraqi civil defense team carry a dead body at the site of collapse of a fast food restaurant after an explosion caused by a leak from cooking gas, in Baghdad, Iraq May 29, 2022. REUTERS/Thaier Al-Sudani 

People react at the site of collapse of a fast food restaurant after an explosion caused by a leak from cooking gas in Baghdad, Iraq May 29, 2022. REUTERS/Thaier Al-Sudani 

Iraqi security and members of the civil defense team gather at the site of collapse of a fast food restaurant after an explosion caused by a leak from cooking gas in Baghdad, Iraq May 29, 2022. REUTERS/Thaier Al-Sudani 

Iraqi security and members of the civil defense team gather at the site of collapse of a fast food restaurant after an explosion caused by a leak from cooking gas in Baghdad, Iraq May 29,2022. REUTERS/Thaier Al-Sudani 

A cook prepares a souvlaki, a popular Greek fast food made with pieces of meat grilled on a skewer, in a restaurant, in Athens, Greece, May 27, 2022. REUTERS/Louiza Vradi 

A cook hands over a souvlaki, a popular Greek fast food made with pieces of meat grilled on a skewer, in a restaurant, in Athens, Greece, May 27, 2022. REUTERS/Louiza Vradi 

People eat souvlaki, a popular Greek fast food made with pieces of meat grilled on a skewer, in a restaurant, in Athens, Greece, May 27, 2022. REUTERS/Louiza Vradi 

Thanasis Golas, owner of O Thanasis restaurant, prepares pita bread for a souvlaki, a popular Greek fast food made with pieces of meat grilled on a skewer, in Athens, Greece, May 27, 2022. REUTERS/Louiza Vradi 

A cook holds a plate of souvlaki, a popular Greek fast food made with pieces of meat grilled on a skewer, in a restaurant, in Athens, Greece, May 27, 2022. REUTERS/Louiza Vradi 

A cook gives a customer a souvlaki, a popular Greek fast food made with pieces of meat grilled on a skewer, in a restaurant, in Athens, Greece, May 27, 2022. REUTERS/Louiza Vradi 

A man sits at a table with a plate of souvlaki, a popular Greek fast food made with pieces of meat grilled on a skewer, in a restaurant in Athens, Greece, May 27, 2022. REUTERS/Louiza Vradi 

A man eats his meal next to images of food displayed at a restaurant at the Ameyoko shopping district in Tokyo, Japan, May 20, 2022. REUTERS/Kim Kyung-Hoon 

A staff member serves a customer at a stall set up outside a restaurant, after the city banned dine-in services amid the coronavirus disease (COVID-19) outbreak in Beijing, China May 16, 2022. REUTERS/Carlos Garcia Rawlins 

A "Now hiring" sign is displayed on the window of an IN-N-OUT fast food restaurant in Encinitas, California, U.S., May 9, 2022. REUTERS/Mike Blake 

A "Now hiring" sign is displayed on the window of an IN-N-OUT fast food restaurant in Encinitas, California, U.S., May 9, 2022. REUTERS/Mike Blake 

Soccer Football - Premier League - Burnley v Leicester City - Turf Moor, Burnley, Britain - March 1, 2022 Fans queue at a fast food restaurant outside the stadium before the match REUTERS/Craig Brough 

Employees dressed as casts from "Squid Game" (a popular TV series) perform to entertain their guests at a restaurant where families can participate in activities such as the Honeycomb challenge, and losers are shot with a toy gun, in Riyadh, Saudi Arabia, February 25, 2022. Picture taken February 25, 2022. REUTERS/Ahmed Yosri 

Hisham Ali, a customer, eats a "feseekh burger" sprinkled with gold leaf and made with "feseekh", a salted fish usually eaten in family gatherings during Easter, at "Fasakhanesta'' restaurant in the Delta city of Mansoura, Egypt, February 10, 2022. Picture taken February 10, 2022. REUTERS/Amr Abdallah Dalsh