A guy was seated next to a little girl on the airplane when the stranger turned to her and said, ‘Let’s talk. I’ve heard that Flights go quicker if you strike up a conversation with
your fellow passenger. The little girl, who had just opened her book, closed it slowly and said to the guy, ‘What would you like to talk about?’ hmmmm… ‘How about nuclear power?’ said the guy.

‘OK’. She said. ‘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 flatpatty, and a horse produces clumps of dried grass. Why do yo suppose that is?’

The guy thinks about it and says, ‘Hmmm, I have no idea. The girl replied… ‘Do you feel qualified to discuss nuclear power when you don’t know shit?’