A guy walks into a bar, approaches the bartender and says: "I've been working on a top secret project on molecular genetics for the past five years, and I've just got to talk to someone about it."

The bartender says: "Wait a minute. Before we talk about that, just answer me a few questions. When a deer defecates, why does it come out like little pellets?"

The guy didn't know. The bartender then asks, "Why is it that when a dog poops, it lands on the ground and looks like a coiled rope?"

He again says, "I don't have any idea."

"I can't talk to you about molecular genetics," the bartender says.

"Why not?" the guy asks.

"Because," he replies, "it's pretty obvious to me that you don't know shit!"

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