At a conference on the supernatural, one of the speakers asked, "Who here has ever seen a ghost?" Most of the hands go up.
"And how many of you have had some form of interaction with a ghost?" About half the hands stay up.
"OK, now how many of you have had physical contact with a ghost?" Three hands stay up; there's a slight murmur in the crowd.
"Gosh, that's pretty good. OK, have any of you ever, uh, been intimate with a ghost?" One hand stays up.
The speaker blinks. "And what is your name sir?
"Hassan Ali Mohammedi, I am from Afghanistan"
"Gosh, sir, are you telling us that you've actually had sex with a ghost?"
The Hassan suddenly blushes and says, "Oh, I'm sorry, I thought you said "goat'."