Peg Leg Pig

Farmers Jones and McDonald were sitting on Farmer McDonald's porch
discussing plowing technique when Farmer Jones notices a pig with a
wooden leg hobbling across the front yard. He turned to his friend and
asks, "Say, Fred, how'd that pig get him a wooden leg?"

"Well, Mike, that pig...," his eyes mist up, "That pig's a mighty
special pig! A few weeks back a wild boar attacked me while I was
walking in the woods. That pig there came a runnin', went after that
boar and fought him off. Saved my life!"

"And the boar tore up his leg?" "No, just got a few scratches, nothing
serious. But that night the barn caught fire. That ol' pig started
squealin' like he was stuck, woke us up, and 'fore we got out here,
the darn thing had herded the other animals out of the barn and saved
'em all!"

"So that's when he hurt his leg, huh, Fred?" "No, Mike, the next day
my tractor hit a rock and rolled down the hill into the pond. I got
knocked clean out. When I came to, that pig had dove into the pond and
dragged me out."

"...but that's not how he hurt his leg." "Oh no, no, he was fine.
Cleaned him up real nice, too."

"Okay, Fred. So just tell me. How did he lose his leg?"

"Well", the farmer tells him, "A pig that good, you don't want to eat
all at once."