Stephen Gallacher of Scotland hits from a sand trap onto the second green during first round play of the Masters golf tournament at the Augusta National Golf Course in Augusta, Georgia April 9, 2015. REUTERS/Jim Young 

Stephen Gallacher of Scotland hits from a sand trap onto the second green during first round play of the Masters golf tournament at the Augusta National Golf Course in Augusta, Georgia April 9, 2015. REUTERS/Jim Young 

Stephen Shearin, president of technology company American Green Inc, is pictured at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. ZaZZZ, as the user-automated machines are called, are located at Seattle Caregivers. American Green Inc provides the machines. REUTERS/David Ryder (UNITED STATES- Tags: HEADSHOT PROFILE DRUGS SOCIETY BUSINESS HEALTH) 

Stephen Shearin poses near ZaZZZ vending machines that contain cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

Stephen Shearin stands near ZaZZZ vending machines that contain cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

Stephen Shearin retrieves a can of Canna Energy Mango as he demonstrates the use of a ZaZZZ vending machine that contains cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

Stephen Shearin demonstrates the use of a ZaZZZ vending machine that contains cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

Stephen Shearin inserts a note as he demonstrates the use of a ZaZZZ vending machine that contains cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

Stephen Shearin demonstrates the use of a ZaZZZ vending machine that contains cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

Stephen Shearin demonstrates the use of a ZaZZZ vending machine that contains cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

Stephen Shearin demonstrates the use of a ZaZZZ vending machine that contains cannabis flower, hemp-oil energy drinks, and other merchandise at Seattle Caregivers, a medical marijuana dispensary, in Seattle, Washington February 3, 2015. Vending machines selling medical marijuana opened for business in Seattle on Tuesday, in what the company providing them billed as a first-in-the-state innovation that it expects to expand to other cities and states where pot is legal as medicine. Shearin is the president of technology company American Green Inc, which provides the machines. REUTERS/David Ryder (UNITED STATES - Tags: DRUGS SOCIETY HEALTH BUSINESS) 

New Jersey Governor Chris Christie (front) is handed a Green Bay Packers hat by Senate President Stephen Sweeney after Christie delivered his state of the state address at the New Jersey State House in Trenton, New Jersey, January 13, 2015. REUTERS/Mike Segar (UNITED STATES - Tags: POLITICS) 

New Jersey Governor Chris Christie (front) is handed a Green Bay Packers hat by Senate President Stephen Sweeney after Christie delivered his state of the state address at the New Jersey State House in Trenton, New Jersey, January 13, 2015. REUTERS/Mike Segar (UNITED STATES - Tags: POLITICS) 

Comedian Stephen Colbert and his wife Evelyn McGee-Colbert pose for photographers on the red carpet as they arrive ahead of the 37th Annual Kennedy Center gala dinner at the U.S. State Department in Washington December 6, 2014. This year's show will toast actor Tom Hanks, recording artists Sting and Al Green, ballerina Patricia McBride, and actress Lily Tomlin, "for their lifetime contributions to American culture." REUTERS/Mike Theiler (UNITED STATES - Tags: PROFILE ENTERTAINMENT POLITICS) 

Team Europe golfer Jamie Donaldson (2nd R) celebrates with teammates Rory McIlroy (L), Stephen Gallacher and Henrik Stenson (R), after winning his match against U.S. player Keegan Bradley, to retain the Ryder Cup for Europe on the 15th green during the 40th Ryder Cup at Gleneagles in Scotland September 28, 2014. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT GOLF)

European Ryder Cup player Stephen Gallacher waits on the third green during the 40th Ryder Cup singles matches at Gleneagles in Scotland September 28, 2014. REUTERS/Russell Cheyne (BRITAIN - Tags: SPORT GOLF)

European Ryder Cup players Ian Poulter (L) and Stephen Gallacher wait on the eighth green during their fourballs 40th Ryder Cup match at Gleneagles in Scotland September 26, 2014. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT GOLF)

European Ryder Cup players Stephen Gallacher (L) Ian Poulter speak as they stand on the eighth green during their fourballs 40th Ryder Cup match at Gleneagles in Scotland September 26, 2014. REUTERS/Eddie Keogh (BRITAIN - Tags: SPORT GOLF)

The Milo's Kitchen Treat Truck is seen at the Marina Green in San Francisco, California June 27, 2014. Milo's Kitchen, a San Francisco-based pet food company, on Friday started its nationwide food truck tour specifically catered to dogs. REUTERS/Stephen Lam (UNITED STATES - Tags: BUSINESS ANIMALS) 

Julian Green of the U.S. is seen before a friendly soccer match against Azerbaijan in San Francisco, California May 27, 2014. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT SOCCER WORLD CUP) 

Canadian Prime Minister Stephen Harper (R), Minister of State (Social Development) Candice Bergen (L) pose with Jessica Green after presenting her award at the Prime Minister's Volunteer Awards Ceremony in Toronto, February 27, 2014. REUTERS/Aaron Harris (CANADA - Tags: POLITICS SOCIETY) 

Stephen Gallacher of Scotland lines the ball on the 14th green during the final round of the 2014 Omega Dubai Desert Classic in Dubai February 2, 2014. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Stephen Gallacher of Scotland putts the ball on the 14th green during the final round of the 2014 Omega Dubai Desert Classic in Dubai February 2, 2014. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Stephen Gallacher of Scotland waves his club as he arrives to the 18th green during the final round of the 2014 Omega Dubai Desert Classic in Dubai February 2, 2014. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Stephen Gallacher from Scotland chips the ball to the 3rd green during the final round of the 2014 Omega Dubai Desert Classic in Dubai February 2, 2014. REUTERS/Caren Firouz (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Stephen Gallacher of Scotland shakes hands with his caddie on the 18th green during the third round of the 2014 Omega Dubai Desert Classic in Dubai February 1, 2014. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Stephen Gallacher of Scotland salutes on the 18th green during the third round of the 2014 Omega Dubai Desert Classic in Dubai February 1, 2014. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Stephen Gallacher of Scotland salutes with his club on the 18th green during the third round of the 2014 Omega Dubai Desert Classic in Dubai February 1, 2014. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Stephen Gallacher of Scotland putts his last shot on the 18th green during the third round of the 2014 Omega Dubai Desert Classic in Dubai February 1, 2014. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: SPORT GOLF) 

Canada's Prime Minister Stephen Harper participates in a photo opportunity at the Garrison Green Seniors Community in Calgary, Alberta, December 22, 2013. Picture taken December 22, 2013. REUTERS/Jack Cusano (CANADA - Tags: POLITICS) 

Canada's Prime Minister Stephen Harper participates in a photo opportunity at the Garrison Green Seniors Community in Calgary, Alberta, December 22, 2013. Picture taken December 22, 2013. REUTERS/Jack Cusano (CANADA - Tags: POLITICS) 

Canada's Prime Minister Stephen Harper participates in a photo opportunity at the Garrison Green Seniors Community in Calgary, Alberta, December 22, 2013. Picture taken December 22, 2013. REUTERS/Jack Cusano (CANADA - Tags: POLITICS) 

Canada's Prime Minister Stephen Harper participates in a photo opportunity at the Garrison Green Seniors Community in Calgary, Alberta, December 22, 2013. REUTERS/Jack Cusano (CANADA - Tags: POLITICS) 

Canada's Prime Minister Stephen Harper participates in a photo opportunity at the Garrison Green Seniors Community in Calgary, Alberta, December 22, 2013. REUTERS/Jack Cusano (CANADA - Tags: POLITICS) 

Canada's Prime Minister Stephen Harper participates in a photo opportunity at the Garrison Green Seniors Community in Calgary, Alberta, December 22, 2013. REUTERS/Jack Cusano (CANADA - Tags: POLITICS) 

Britain's Minister of State for Trade and Investment Stephen Green speaks during a panel session during the World Islamic Economic Forum in London October 29, 2013. REUTERS/Luke MacGregor (BRITAIN - Tags: POLITICS BUSINESS RELIGION) 

Lyft co-founders John Zimmers (L) and Logan Green speak on stage during a Founders Stories session at TechCrunch Disrupt SF 2013 in San Francisco, California September 9, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY) 

Logan Green, co-founder and CEO of Lyft, speaks on stage during a Founders Stories session at TechCrunch Disrupt SF 2013 in San Francisco, California September 9, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY) 

Logan Green, co-founder and CEO of Lyft, speaks on stage during a Founders Stories session at TechCrunch Disrupt SF 2013 in San Francisco, California September 9, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY) 

Two Green Bay Packers fans cheer from the stand during the NFL season home opener football game between the San Francisco 49ers and the Packers in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers linebacker Clay Matthews (52) commits a late hit on San Francisco 49ers quarterback Colin Kaepernick (7) during the second quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers quarterback Colin Kaepernick (7) stands on the field before his NFL season home opener football game against the Green Bay Packers in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers wide receiver Anquan Boldin (81) attempts to makes a catch as Green Bay Packers cornerback Sam Shields (37) defends during the third quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers quarterback Aaron Rodgers (12) plays against the San Francisco 49ers during the second quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers quarterback Aaron Rodgers plays against the San Francisco 49ers in the first quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers quarterback Aaron Rodgers plays against the San Francisco 49ers in the first quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers head coach Mike McCarthy (L) shakes hands with San Francisco 49ers head coach Jim Harbaugh after their NFL season home opener football game in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers running back Frank Gore (R) rushes up the field as Green Bay Packers linebacker Clay Matthews makes a tackle during the fourth quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers defensive tackle Ray McDonald (L) pressures Green Bay Packers quarterback Aaron Rodgers during the fourth quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers running back Anthony Dixon (24) smiles at the crowd after his NFL season home opener football game against the Green Bay Packers in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers quarterback Aaron Rodgers (L) looks to pass the ball while being taken down by San Francisco 49ers linebacker Aldon Smith (R) during the last play in the fourth quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers quarterback Colin Kaepernick (7) celebrates with running back Frank Gore (21) after Gore scored a touchdown during the fourth quarter of their NFL season home opener football game against the Green Bay Packers in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers head coach Jim Harbaugh in action during the fourth quarter of his NFL season home opener football game against the Green Bay Packers in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers head coach Jim Harbaugh in action during the fourth quarter of his NFL season home opener football game against the Green Bay Packers in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers wide receiver Kyle Williams (10) couldn't pull in a catch as Green Bay Packers cornerback Sam Shields (37) pressures during the fourth quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

San Francisco 49ers wide receiver Kyle Williams (10) couldn't pull in a catch as Green Bay Packers cornerback Sam Shields (37) pressures during the fourth quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. The 49ers defeated the Packers 34-28. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers tight end Jermichael Finley (88) drops a catch during the second quarter of his NFL season home opener football game against the San Francisco 49ers in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers running back Eddie Lacy (C) rushes up the field during the first quarter of his NFL season home opener football game against the San Francisco 49ers in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers tight end Jermichael Finley (88) and wide receiver Randall Cobb (18) celebrate after Cobb scored a touchdown during the first quarter of their NFL season home opener football game against the San Francisco 49ers in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL) 

Green Bay Packers quarterback Aaron Rodgers (R) scrambles as he is being pressured by San Francisco 49ers linebacker Aldon Smith (L) during the first quarter of their NFL season home opener football game in San Francisco, California September 8, 2013. REUTERS/Stephen Lam (UNITED STATES - Tags: SPORT FOOTBALL)