"If you don't have a slot, what are we going to do with you?"It's called Twenty-One Nights with the Knights. But for Elvin Bishop -- fourteen, overweight, and a self-proclaimed non-athlete -- this summer sports "retreat" is more like the twenty-one trials of hell.As everyone around him, including his best friends, slips smoothly into athletic "slots", Elvin is pounded on the football field, slammed on the baseball diamond, and tortured on the wrestling mat -- always coming out a complete failure. But appearances can be deceiving. Sometimes real strength comes from breaking the rules rather than playing the game. And sometimes finding acceptance is less about fitting in than about making your own way -- with grit and humor.