I just hit the over in the ASU/Wash St game on a 3-point shot at the end of the game with less than a second left on the shot clock.
I don't know if you remember but I had another strange occurrence with NCAA BB overs a couple nights ago where a team fouled another team that was ahead by more than 10 points and they did this twice in the last minute for the over.
However, it goes both ways. I had the Boston Bruins in NHL. They went ahead 3-2 with less than a minute remaining and Florida scored with less than 2 seconds left to tie it up. Florida would go on to win in OT. I was risking 3 units to win 2 units so it was a swing of 5 units in less than 2 seconds.