Once Bill Clinton visited a elementary school to talk to a group of 3rd graders. He said to them, "Today we are going to discuss the difference between a tragedy, a great loss and an accident". Then he said, "Can anyone give me an example of a tragedy?"
A little boy raises his hand and says, "If a kid runs out in the street after a ball and gets hit by a car." Clinton says, "No, that would be an accident. Can anyone else try?" A little girl raises her hand and says, "If a busload of kids drove off a cliff." Clinton says, "No, that would be a great loss. Come on, anyone else?"

A boy raises his hand and says and says, "If you and Mrs. Clinton was on a plane and it blew up." Then Clinton says, "Well, Yes, but can you tell me why it would be considered a tragedy?" And the little boy says, "Well, it wouldn't have been an accident, and it sure as heck wouldn't have been a great loss."