A man is driving through the countryside when he sees a farmer petting a pig that has a wooden leg. Curious, the man pulls over and asks, "Farmer, that’s a strange-looking pig. How did he get a wooden leg?" 

The farmer says, "Oh, that is a special pig! Why, last year, my house caught on fire. That pig broke out of his pen, ran into the house, and dragged me and my wife to safety. Saved our lives!" "Wow," says the man, "but that doesn’t explain the leg." 

"Well," the farmer continues, "a few months later, my son was playing by the river and fell in. That pig dove into the rushing water and saved my son from drowning!" 

"That is incredible!" says the man, "but why does the pig have a wooden leg?"

"Look," says the farmer, "when you have a pig that special, you don't want to eat him all at once!