About 50 years ago, a boy spied a unicycle tossed to the curb and decided to roll it home. The boy's father wasn't pleased when he saw it. Its bearings were bent out of shape. Its pedals scraped the floor.But the father, being a good dad and somewhat mechanically inclined, set about repairing it for his son. The boy did not know then how it would inspire an entire school community.The boy spent hours in the basement of his home practicing, 15 minutes at a time.