I heard a different version: Young farmer: I got some pigs, but I don't know what to feed them. What do you feed your pigs? Old farmer: I had some pigs once,

I heard a different version: Young farmer: I got some pigs, but I don't know what to feed them. What do you feed your pigs? Old farmer: I had some pigs once, I fed them one of my cows that had died of consumption. Young farmer: Really? Old farmer: Yup. <2 weeks later> Young farmer: One of my cows died, so I fed it to my pigs. They all died. Your pigs really thrived on meat of a diseased cow? Old farmer: Nope, my pigs died.