I can't believe she fell on her butt during the first attempt, but you know, a silver medal ain't so bad. One quality I don't admire about some of these athletes, including Phelps himself, is the sense of hyper competitiveness. To them, they either win a gold medal or they don't. I suppose a lot of that has to do with pride or arrogance. I could see Maroney was really soured by the outcome, but she had only herself to blame. Whereas Danell Leyva was happy with getting a bronze in the individual all-around, Maroney was so unhappy she was reluctant to even congratulate her winning opponent. I think a lot of these errors have to do with nerves.
Well, I suspect that at Olympic level, if you're in with a shot at a gold medal (and especially if you're expected to get the gold) you have to hyperfocus on that goal to the exclusion of everything else in order to be able to stay totally motivated.
I'm sure once a month or two passes, they'll be able to appreciate their "minor" medals for what they are. But for now, it's case of "what if", and that's really painful. I think I'd be pissed off too, even more so if you know it's because of a stupid mistake you'd never normally make. It's self-recrimination more than poor sportsmanship.