People seem to like this joke when I tell it..
There are three guys having a relaxing stroll in the woods when suddenly they find themselves lost. After about an hour of trying to find their way back they are kidnapped by a tribe of cannibles. They take the three guys to their cannible leader. The leader says to them "You must do as I say or else you will be instantly killed. Understand?" The three guys nodded. "Your first task: Go out into the forest and collect ten items of the same fruit. Go!" So the three guys run off into the forset in search of fruit. The first guy comes back with ten apples. "Your second task. Complete this and you shall be set free: You must shove your fruit up your butt without any facial expression or noise. Start." So the guy starts with his task. Two apples in, he winces and is killed. The second guy returns to the tribe with ten berries and is told to do the same task. Eight berries in, he bursts out laughing and is kills. The two guys meet in heaven and the first guy says "Dude! Why did you laugh?! You nearly did it!"
"I couldn't help myself." The second guy explained.
"I saw the third guy coming with Pineapples."