Witnessed a strange one last year between two atom teams in the playoffs.
Game is in OT. Team A has a player pulled down on a breakaway. He is too hurt to take the penalty shot so one of his teammates does and scores. The team celebrates. The other team is dejected. They shake hands at centre ice and depart. Game over.
The Zamboni does its thing, the next two teams take the ice and are warming up when they are pulled off the ice. The coach of the losing team had appealed (sucessfully I presume) that the player that took the PS was not on the ice and came off the bench to do so. Apparently the players were half undressed when they were told that they were returning.
Game restarts with the PS being taken by the player that was taken down. He scores, and they leave the ice again.
Thought that was the end of it when before our game later in the week I spot the same two teams playing again. Apparently the league made them replay the whole thing. The losing team won.