A farmer, talking to a neighbor, is bragging about his favorite pig that he owns. He points the pig out to the neighbor. The neighbor said, "That pig only has three legs--He ain't worth a hoot." The farmer indignantly replied, "That pig saved my life! One day I was on my tractor plowing the field near a ditch when my tractor got too close to the ditch and turned on it's side trapping me below it with mud up to my nose. That pig burrowed under the tractor and got me by the back of my collar and dragged me to safety."
"That's marvelous!" said the neighbor, "But what about the three legs?"
"Oh, a prize pig like that, you just don't eat all at once!" replied the farmer.