Three men are shipwrecked on an island inhabited by cannibals.

The cannibals capture the men and bring them to their chief. The chief orders, "you three have to face my trial. If you succeed, you will be freed. But if you fail, we will eat you. Now, go around the island, collect ten units of one fruit and come back to me." The three men obey, and set off on their fruit hunt.

After a while, man 1 comes back with ten apples. "Very good," says the chief, "now put all ten apples up your butt without making any noises or we will kill you." Hesitant, man 1 tries to slide the apples up his butt. He manages to squeeze two in before he squeals on the third apple. "Kill that man!" orders the chief. Man 1 is killed and eaten.

Next up is man 2. He comes back with ten grapes. Once again, the chief explains, "put all ten grapes up your butt without making any noises or we will kill you." Man 2 handles his grapes like a champ. He inserts the grapes one by one without even flinching. But on the tenth grape he laughs. Man 2 is killed and eaten.

Up in heaven man 1 and man 2 meet each other. Man 1 asks man 2 "why did you start laughing? You were about to be set free." Man 2 looks at man 1, still smiling, "it couldn't be helped, I saw man 3 coming with 10 pineapples."

Edit: apples -> grapes