A donkey protests against the plight of world coffee farmers outside the London Stock Exchange

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Donkey jailed in Mexico for violent behaviour

The animal was locked up in a holding pen normally used for keeping drunks off the streets after it lashed out at the pair at a ranch in Chiapas state, local police revealed

The owner of the angry ass, Mauro Gutierrez, has been told that he will have to pay the injured men's medical bills before the creature is released from custody

Vazquez, 63, told police that the unnamed donkey bit him in the chest on Sunday and then kicked 52-year-old Andres Hernandez as he tried to come to the rescue, fracturing his ankle

"All of a sudden, the animal was on top of us like it was rabid,"

It took six men to restrain the enraged beast, police said

Previous animal inmates include a bull that devoured corn crops and destroyed two wooden vending stands in March

In 2006 a dog was locked up for 12 days after biting someone. His owners were fined US$18.