A guy boards a plane and is seated next to a cute blonde. He wastes no time in making his move.

He says to her: " It's going to be a long flight and perhaps some nice conversation will help time to pass quicker".

The blonde (who was just about to open a book) sizes him up and says: " Why not?".

The guy is something of a weasel and says to her with a smirk: " Shall we talk about nuclear power?"

The blonde says: " Before we do, let me ask you a question. A deer, a cow and a horse all eat grass. A deer craps out little pellets. A cow produces flat patties. A horse gives out muffins of dried poop". Now why do you suppose they are so different?"

The guy is dumbfounded. He says: " I really have no idea!".

The blonde says: " How is it that you consider yourself qualified to discuss nuclear power when you don't know shit?"

Good one Gerry