Piotr Anderszewski might be one of the most revered pianists of his generation, but he's also one of the most impulsive.
In 1990, at age 21, the young Pole entered the prestigious Leeds International Piano Competition. He was nearly finished with his semi-final performance when he quit playing — just walked off the stage. He felt he wasn't good enough to continue. It was a gutsy move that actually helped launch his career.