when you don't know shit?

A Georgia Congressman was seated next to a little girl on the  airplane leaving from Atlanta when he 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 total stranger, 'What would you  like to talk about?'


'Oh, I don't know,' said the southern congressman. 'How about global warming or universal health care', and he smiles smugly.


OK, ' she said. 'Those could be  interesting topics.. But let me ask you a question first. A horse, a cow, and a deer all eat the same stuff - grass. 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?'


The southern legislator, visibly surprised by the little girl's  intelligence, thinks about it and says, 'Hmmm, I have no idea.'


To which the little girl replies, 'Do you really feel qualified to discuss global warming or universal health care when you don't know shit?