There was a convention of psychics and supernaturalists and one of the topics discussed was "Meetings with ghosts".
The speaker asked the gathering who has ever seen a ghost. A large number of participants raised their hands.
He then asked the group who has actually had physical contact with the supernatural. Again, a large number of people raised their hands.
He then asked if anyone had ever had sex with a ghost. One man in the back row raised his hand sheepishly.
"You sir, in the back. You have actually had sex with a ghost?"
The man in the back says "What?"
"I repeat, you said you had sex with a ghost? Please tell us more."
The man replied "Oops! Sorry. I thought you said goat!"