After climbing out of the rubble behind the Detroit net Tuesday night, the Blues' David Perron skated to the penalty box to serve a two-minute penalty for goaltender's interference. Not unlike many players to follow that path, Perron wondered what he had done wrong. But in this case, video evidence seemed to show he was perhaps incorrectly accused. Detroit defenseman Brad Stuart shoved Perron into Red Wings goaltender Jimmy Howard, who, perhaps unaware of that fact, jumped to his feet and went after Perron. Lying on top of the Blues' winger, Howard threw several punches, inciting a scrum before officials broke it up and pointed Perron off the ice. "It's a quick play, bang-bang, and I tipped it on goal," Perron said. "(Howard) slides across and I think at least half of his body was outside the crease. I'm trying to avoid him, but (Stuart) pushed me into him. I understand the goalies want to have that security in the net, not to get hit, but when you get pushed in, it's tough to avoid contact."