Three guys are in a bar discussing which joint in town has the best deal on drinks.

The first guy boasts, "There's a bar on the South Side where the bartender will set up a free drink for every one you buy."

The next guy says, "That's nothing! Over on the West Side there's a bar where the bartender will pour you a double shot free for every one you buy."

The last guy is totally unimpressed and says, "That's nothing. There's a place somewhere on the North Side where the owner buys you drinks all night. Then when the bar closes, he takes you into a back room with a cot makes love to you all night."

The first two guys are shocked but a little skeptical, so they ask if he's actually been there. "Nope," the guys says, "But my sister told me all about it."