I saw this kid at a crit, run across the road after the bunch had passed, only to be picked off by a rider trying to get back to the field. The rider was sooo mad he grabbed the kid and started shouting. A marshal had to calm him down, that's when the rider realized how hurt he was, of course the kid was fine.

Fortunately, I've never crashed at a crit, only road races. Although crit speed is fast, always jumping out of corners, bridging gaps, I think that you get to know the circuit quickly and get into a rhythm as far as knowing what to expect throughout the race. In RR's you aren't always prepared to know what's around next corner and being mostly on open roads doesn't help.