Another MSU one I just thought of.
MSU was playing Florida Gulf Coast, and was winning by 1, FGCU threw a full court pass with like 2 second to go, but the clock started on the throw, not the catch, so the buzzer sounded as the FGCU player caught the ball, and he just heaved it at the rim. He actually had 2 seconds, and caught it in the paint, so he would have had time to collect and take a shot, a la Christian Laettner. They should have said inadvertent horn before the play, and just redone it, which still would have somewhat screwed FGCU because it's unlikely they complete that pass again, but at least it's something. Instead they said the play counted, and the missed shot ended the game, since the ball deflected out into play and the 2 seconds would have then run off. Except the kid wouldn't have taken that forced shot if he hadn't been tricked by the incorrect buzzer.