Ian Wyatt doesn't remember the moment he lost half of his thumb. He was 1 year old, sitting in his family's driveway against the side of an exercise bike while his 7-year-old brother played with the pedals, pumping them around and around to make the wheels fly. Wyatt, unaware of the laws of physics, stuck his tiny hand into the bike's chain. It cleanly sliced off half of his right thumb.
"To be honest, I got quite lucky," Wyatt says.