The Penguins were getting their butts spanked by the Sabres 6-3 late in the 3rd when Penguins' head coach, Mike Sullivan, had enough from fans.
There were a couple of fans that kept banging on the glass and pissing off Sullivan. He finally had enough and created an altercation with the fans with just two seconds left on the clock.
Not a great way to end the night for Sullivan. I sure am glad I wasn't in that locker room following a bad loss and Sullivan losing his temper.