5 Shots Whiskey

Guy goes into a bar and orders 5 shots. He knocks them back and orders 5 more.
The bar tender asks "are you celebrating something"?
The guy says "I just had my first ********"
The bartender says well if that's the case the bar would like to buy to a drink.
The guy says "Nah, if 10 drinks don't take the taste out of my mouth then forget it"