 It doesn't make any sense. And the reason they use bells in schools is because that's what they use on the assembly lines. Lunchtime, ring a bell. Okay, go to lunch. Ring a bell again. You come back from lunch. The whole thing was programmed for a stimulus response. We still tell our children, if you want to do well in life, you've got to go to college to get a degree. Well, the only reason we tell them that is because that's what we're expected to tell them. We haven't really thought about it.