A guy runs into a bar and says to the bartender, "Give me 20 shots of your best scotch, quick!"
The bartender pours out the shots, and the guy drinks them as fast as he can.
The man says, "Give me 10 more."
The bartender does, and the man downs them just as fast.
The bartender says, "Wow. I never saw anybody drink that fast."
The guy replies, "Well, you’d drink that fast too if you had what I have."
The bartender says, "Oh no! What is it? What do you have?"