A dumb penalty is one thing. This is unacceptable.
The Chicago Blackhawks lost Game 4 to the St. Louis Blues on Tuesday night, so it's understandable that Andrew Shaw would be upset about it. His late penalty put Chicago on a penalty kill and effectively derailed their chances of a comeback. Now Chicago needs to win three straight games to keep its season alive. That's worth getting mad about.
Shaw's reaction in the penalty box -- which was caught on video by NBC -- on the other hand, is something that both he and the team should be truly embarrassed about.