Guy walks into a bar with a pig with a wooden leg on a lead. Barman says "Why's that pig got a wooden leg?"
Guy replies, "Get me a pint and I'll tell you a story" Barman pours the lad a pint and he launches into an amazing tale.
"One night, couple of years back, we were sleeping in bed and the house caught fire. We were all trapped, being overwhelmed by smoke. Anyway, the pig smashed a window, burst into the house, dragged us all out, saved our lives like."
Barman says, "That's amazing, but why does he have a wooden leg?"
"Another time, my daughter was skating on a pond one winder and the ice broke, she went straight through. The big, sensing danger, slid along the ice on it's belly, dipped his snout under the water, dragged her out, saved her life."
"Well that's incredible, but why's he got a wooden leg?"
"Another time, I was taking him for a walk up town when we stumbled upon a bank robbery in progress. The robbers came running out, firing their guns into the air when the pig burst free from my grasp, wrapped his lead round the robbers' legs, tripped them up and foiled the bank robbery."
"Seriously? He's the most amazing pig I've ever heard of! But I really need to know, why's he got a wooden leg?"
"Well if you had a pig like that, would you eat him all at once?
