(Insert teams A, B and C as you like. This is how I know it.)
Three baseball fans walk out of a bar. They turn a corner and see a pair of legs sticking out from behind a bush. They push the bush aside and find a woman dead and completely naked. They call the police and as they wait, they decide to cover the woman up.
The Cubs fan takes of his hat and covers her left breast. The Royals (my team) fan takes off his hat and covers her right breast. The Yankees fan takes off his hat and covers her crotch.
The police arrive. The detective walks around the scene and writes in his little book. He lifts the Cubs hat, looks underneath, sets it back down and writes in his little book. He lifts the Royals hat, looks underneath, sets it back down and writes in his little book. He the lifts the Yankees hat, looks underneath, starts to set it back down, stops, does a double-take, sets the hat back down slowly and starts to write in the little book.
The Yankees fan is upset by this. He asks, "What was that? Haven't you seen one of those before?" The detective replies, "You misunderstand. Normally when I look under a Yankees hat, I see an asshole."
