"Ghost" joke

One night, at a party, The host asked his guests:
"How many here believe in ghosts?"
Everyone put up their hand.
"How many have seen ghosts?"
A lot of people put up their hand.
"How many have touched a ghost?"
Five people put up their hands
"How many have had sex with a ghost?"
One person put up their hand.
"Well then," said the host, "why don't you come up here and tell us all about it."
The man walked up.
"So, how was your night with the ghost?" asked the host.
"Ghost?" Said the man, "Sorry, I thought you said goat."