A man rides a burro taxi (donkey taxi) for tourists as he leads another burro taxi to the stable after a working day in downtown Mijas, southern Spain, November 15, 2016. REUTERS/Jon Nazca 

Business leaders stage a protest in front of the Congress in Brasilia June 8, 2005. The group is asking the government for a unified national state tax system, as opposed to those currently in place, with separate tax structures for all states. A sign affixed to the burro reads "buinessmen" and the one to the garbage cart reads "tax load." REUTERS/Jamil Bittar JB/CN 

Carlos Sanchez, who is dressed as Juan Valdez, the icon of Colombian coffee, and his burro Conchita pose for photos at the opening of the Juan Valdez Cafe in New York, September 28, 2004. The New York Juan Valdez Cafe, the second in the U.S. which will serve as the company's flagship, is owned by the National Federation of Coffee Growers of Colombia. All retail profits will go back to the Colombian coffee farmers to improve their lives in the coffee growing regions. REUTERS/Henny Ray Abrams HRA/GN