This guy walks into a bar and sits down, asking the bartender for a drink. The bartender brings it over, whereupon this little fellow sitting on the guys shoulder, runs down the guy's arm, kicks the drink over, and runs back up to his shoulder. The bartender watches this whole thing in amazement.

The guy is totally exasperated and asks the bartender for another drink: "Make it a double this time." The bartender brings it over and no sooner does it hit the bar, the tiny fellow on the guy's shoulder wakes up, titters, runs down his arm, does a little dance with a leg kick that knocks the guy's new drink over, runs back up and goes back to sleep.

The bartender can't stand it anymore, so he asks the guy what the story is.

"I was on a desert island and found an Aladdin's lamp which I rubbed, and out came a genie. He gave me one wish. I asked for a twelve-inch prick - And this is what he gave me!"