A traveling salesman is driving past a farmhouse when he sees a pig with a wooden leg.
This piques his curiosity, so he goes to the house and knocks on the door. The farmer answers.
“What’s the story with the pig with the wooden leg?” asks the salesman.
“Let me tell you about that pig,” says the farmer. “That is no ordinary pig.”
“One night about six months ago my house caught on fire. That pig came into the house, nudged me awake, and led me through the smoke to safety. That pig saved my life!”
“That really is some pig,” the salesman agrees. “But why does he have a wooden leg?”
“Well,” says the farmer, “a pig like that you don’t eat all at once.”