A lady walks into a bar, sits on a stool, and orders a can of Bud. She drinks it, passes out, and falls to the floor.
The bartender, being kind, calls her a cab and helps load her into the car.
The next day, the same lady comes in and the same thing happens. This time the bartender decides that before calling the cab he'll take her in the back room and fuck her.
The next few days, bartender decides to show his friends. The following day, the lady comes in, drinks a Bud and passes out on the floor. The bartender and his friends take her in the back room and fuck the shit out of her. They then put her in the cab.
The next night, the lady walks in, grabs a stool, and orders a Pabst Blue Ribbon. The bartender says, "Say, don't you drink Bud?"
The lady says, "I used to, but it makes my cunt hurt".