How is it we forget pain so quickly? It's not really masochism. But everyone experiences that feeling at least once a season (for me, once a race): that "what the hell, never doing this again" feeling. But almost immediately after the race, it's forgotten and the racer is planning his/her next wilful invitation of pain and humiliation. I suppose it's just an evolutionary thing: that capacity to quickly forget pain that doesn't injure. I shouldn't mischaracterise. Racing is fun, but an uncomfortable type of fun even at the best of times. Ah well, chalk it up to adrenaline.