A fellow, who had spent his whole life in the desert...

A fellow, who had spent his whole life in the desert, comes to visit a friend. He'd never seen a train or the tracks they run on. Whilestanding in the middle of the railroad tracks one day, he hears thiswhistle -- Whooee da Whoee! -- but doesn't know what it is.Predictably, he's hit and is thrown to the side of the tracks. It wasonly a glancing blow, so he was fortunate to receive some minor internalinjuries, a few broken bones, and some bruises.After weeks in the hospital recovering, he's at his friend's houseattending a party one evening. While in the kitchen, he suddenly hearsthe teakettle whistling. He grabs a baseball bat from the nearby closetand proceeds to batter and bash the teakettle into an unrecognizablelump of metal. His friend, hearing the ruckus, rushes into the kitchen,sees what's happened and asks the desert man, "Why'd you ruin my goodtea kettle?" The desert man replies, "Man, you gotta kill these things when they'resmall."