Four baseball fans - a Red Sox fan, a Yankees fan, a Cardinals fan, and a Cubs fan - are climbing a mountain and arguing about who loves his team more.
The Red Sox fan insists he is the most loyal. "This is for the Red Sox!" he yells, and jumps off the side of the mountain.
Not to be outdone, the Yankees fan shouts, "This is for the Yankees!" and throws himself off the mountain.
The Cardinals fan is next, so he yells, "This is for everyone!" and then pushes the Cubs fan off the mountain.