Two men were shipwrecked on a desert island inhabited by cannibals, the chief said that he was a fair man, and that he wouldn't eat the men if they went into the rain forest and brought out a wheelbarrow of his favorite fruit.

The first man came out with grapes, and the chief said sorry, but I will give you one more chance, if you can push all of those up your bum without laughing, I will let you go.

The man gets to the last one and bursts out laughing, the chief asks him why he started laughing, the man replied, "I just saw my mate and he has a barrow full of coconuts!"