Double Shots

A pale-looking man staggers into a bar and says "Get me ten double shots of your best whisky." The bartender does this, and the man slugs them down one after another, until he's knocked back the lot in less than a minute. Worried, the bartender asks, "Why are you hitting the bottle so hard?" "You'd drink this fast if you'd got what I've got," says the man. Wondering what terrible affliction this might be, the bartender asks, "What have you got?" The man replies, "About eighty five cents."