A drunk staggers into a bar demanding a beer. The bartender informed him that he was not allowed to serve alcohol to drunken patrons. After a few harsh words, the bartender suggested to the drunk to prove he wasn't drunk by doing twenty push-ups on the floor. As he was doing the push-ups, another drunk staggers into the bar and sees this guy on the floor doing push-ups. He looks at him for a minute and then nudges him in the ribs saying, "Fella, I think your girl friend has gone home."