A professor at Auburn University was giving a lecture on the supernatural. To get a feel for his audience, he asked, "How many people here believe in ghosts?" About 90 students raised their hands.
"Well, that's a good start. Out of those of you who believe in ghosts, do any of you think you've seen a ghost?" About 40 students raised their hands.
"That's really good. I'm really glad you take this seriously. Has anyone here ever talked to a ghost?" 15 students raised their hands.
"Has anyone here ever touched a ghost?" 3 students raised their hands.
"That's fantastic. Now let me ask you one more question ... Have any of you ever made love to a ghost?" Billy Bob, way in the back raised his hand. The professor took off his glasses, peers toward the back of the room and says, "Son, in all the years I've been teaching this class, no one has claimed to have made love to a ghost. You've got to come up here and tell us about your experience."
The redneck student replied with a nod and a grin, and made his way to the podium. As he reached the front of the room, the professor said, "Well, now, tell us what it's like to have sex with a ghost?"
Billy Bob replied, "Shhhiiiiiittt! From way back in the room, I thought you said "Goats"!!