Basically... Petizian got a 2 for goaltender interference earlier in the period. During the ensuing powerplay Haché got pushed towards Richard and didn't try to avoid him as much as he did. Blagden didn't like that.
When the coincidental penalty to Haché and McCallum ended, Blagden went to the penalty box (afterh the whistle had blown), started hitting Haché while he was still in the box (trying to come out) and Blagden got pushed away by the timekeeper. Then things erupted from there and he fought with Arsenault, then continued making a fool of himself giving a hard time to referee's and everyone else on the ice. He ended up with 2 for roughing, 2 for instigating, 5 fighting, a game misconduct for the fight and a gross misconduct. Arseneault got a 5 for fighting and a game misconduct. His suspension was waived by Blagden picking up the instigating minor.
During the 3rd period he was sitting not too far from me in the stands and told someone "I don't like it when someone touches my goalie." I can respect that, but there are some ways of going about getting your message through, his way was a bit of an overreaction.