A guy walks into a bar and orders 4 shots of whisky. The bartender pours all four shots and then the guy drinks them very fast and all in a row.
The bartender says, "Wow, I've never seen anyone drink 4 shots of whisky so quickly before."
They guy says, "Well, if you had what I had, you'd drink your whisky that quickly, too."
The bartender replied, "Geez, I'm sorry. I didn't mean to be insensitive to your ailment. If you don't mind me asking, what do you have?"
The guy says, "75 cents."