1) An ST/DM's best friend.
2) The solution to munchkins and bad player characters.
3) A flaming cow dropped from the sky onto someone as "divine punishment".
Upon meeting Jon's character, Anna's character stabbed him to death and took all his equipment without even an exchange of words. For this, I dropped a celestial bovine on her character, told her to make a new one, and transfer no expereince points.