Steve Rapp walked away from that accident even though the bike was destroyed. He was quoted as saying that another rider (John Kocinski?) "parked his bike" on the track in front of him and that when he hit that bike, his front brake lever got slammed into the clip-on, which caused the bike to abruptly stop. While the race was red-flagged, Rapp walked back to the pits and was on his back-up bike for the restart of the race. Rapp was extremely fortunate that he wasn't run over by any of the other racers behind him.
Look at the one from Laguna Seca WSBK this year. Frankie Chili gets hurt, runs uphill back to the pits in full race leathers, then after the restart won Race one in World Superbike. And he is about 40 years old.