In 2006, Keith Richards fell out of a coconut tree.

The Rolling Stones guitarist was hanging in Fiji during a world tour, and subsequently had to be flown back to a New Zealand hospital for observation after suffering a concussion.

Maybe Keith was playing possum.

According to Fairfax NZ News, possum involves a group of people drinking a 24-pack of beer while up a tree. The first one to fall out from drunkenness loses the game.

Dunedin City Council gardens and cemeteries team leader Alan Matchett said people, believed mostly to bestudents, played the game at the gardens in the afternoons and early evenings, during the week and at weekends.

Staff were fed up with the mess left behind, which included glass, food scraps and cans – and vomit.

"It’s been occurring fairly regularly for the last two or three years. We don’t usually see them, but police and Otago University campus watch staff have had to move people on from the park and told them to clean up their mess," Matchett said.

"What they drink has to come out again, so they do throw up and urinate from the trees. Obviously, it’s not nice to have that left behind."