A visiting professor at Cardiff University is giving a seminar on the supernatural. To get a feel for his audience, he asks: "How many people here believe in ghosts?" About 90 students raise their hands. "Well that's a good start. Out of those of you who believe in ghosts, do any of you think you've ever seen a ghost?" About 40 students raise their hands. "That's really good. I'm really glad you take this seriously. Has anyone here ever talked to a ghost? 15 students raise their hands. "That's a great response. Has anyone here ever touched a ghost?" Three students raise their hands. "That's fantastic. But let me ask you one question further.....Have any of you ever made love to a ghost?" One student in the back raises his hand. The professor is astonished. He takes off his glasses, takes a step back, and says, "Son, all the years I've been giving this lecture, no one has ever claimed to have slept with a ghost. You've got to come up here and tell us about your experience." The redneck student replies with a nod and a grin, and begins to make his way up to the podium. The professor says, "Well, tell us what it's like to have sex with a ghost." The student replies, "Ghost? Damn..... From back there I thought you said 'goats'!"