A stranger was seated next to Little Tommy on the plane when the
stranger turned to the boy and said, "Let's talk. I've heard that
flights will go quicker if you strike up a conversation with your fellow
passenger."
Little Tommy, who had just opened his book, closed it slowly, and said
to the stranger, "What would you like to discuss?"
"Oh, I don't know," said the stranger. "How about nuclear power?"
"OK," said Little Tommy. "That could be an interesting topic. But let me
ask you a question first. "A horse, a cow, and a deer all eat grass. The
same stuff. Yet a deer excretes little pellets, while a cow turns out a
flat patty, and a horse produces clumps of dried grass. Why do you
suppose that is?"
"Jeez," said the stranger. "I have no idea."
"Well, then," said Little Tommy, "How is it that you feel qualified to
discuss nuclear power when you don't know shit?"

thats ok, though I woulda named it you don't know shit!
so dumb f**k dat wants to talk about nuclear what?, sniff my ass!