The sport of hockey can be such a violent sport, especially since they let players fight out their differences from time to time.
An organized fight is one thing, but a straight sucker punch is entirely another.
During the end of a youth hockey game, an opposing goalie had something on his chest tat he wanted to get off, so he reached back and punched a player on the other team square in the face, knocking him down to the ice.
It was a shocking moment not only because of the punch in the handshake like, but because the teammates of that player never even budged to help him after he was hit.