There were three men on a plane when it crashed. One was from Boston, the other was from LA, and the third was from a hick town in Mississippi. After the crash they find themselves in a thick jungle and are rescued by cannibals. The chief tells them that he will put them through a test to see if they should be killed and eaten or left alive. He sends them into the jungle and tells them to choose a type of fruit and pick 100 of that type of fruit and bring it back to the village.
The guy from La is the first back. He brings 100 pears to the chief. The chief says good, now you must eat all 100 pears and we will let you go. Determined, the man starts to eat the pears, but eventually after about 30 he gives up and is killed and eaten.
Next is the guy from Boston who brings back 100 cherries. The chief is impressed and tells him to begin eating, the man breezes through the first 80 cherries. As he gets to the last cherry he bursts out laughing uncontrollably and cant stop. He finally gives up before eating the last cherry. The chief is amazed but is forced to kill the man. As the chief is sharpening his sword, he asks the man, what was so funny that he couldn't stop and eat one more cherry? The man says he was laughing because he saw the guy from Mississippi picking watermelons.