Plane Rides

GET Ready for a Stupid Joke:
A man gets on a plane and sits next to a woman. He turns to her and says, I have heard that If you strike up a conversation with the person next to you on the plane your flight will go by faster. The woman says to him, what do you do for a living. The man replies I am a nuclear scientest. Oh she replies, You know horses, cattle and deer all eat the same food. Yes he replied they all eat grass. She says to him why is it that a horses shit is in big clumps, a deers shit is little pellets and cattles shit is flat patties. The man replies, I dont know. The woman looks at him and says you want to talk to me about nuclear science and you dont know shit.