Butler should watch his back--fate has not been kind to the inventors of sports gestures. After a great rookie season, Ickey Woods tore his anterior cruciate ligament and was never the same again. He was last seen delivering wholesale meat door-to-door in Cincinnati. Derek Smith, originator of the High-Five, died last year--the 34-year-old succumbed to respiratory failure while aboard a cruise ship. The cause? A reaction to motion-sickness medicines.