1. Chara and Patches have a history. Chara hates him.
2. The puck is 50 feet down the ice.
3. The period is pretty much over.
4. Bruins are getting asses handed to them.
5. Ryan White obliterated Boychuk earlier.
6. Chara doesn't even look back like, "oops, wtf did I just do." He wasn't shocked or surprised or anything. Just kept skating because he expected that to happen.
7. The stanchion doesn't come out of nowhere. He knows it's there. They were skating towards it from before they even left the B's zone. And he decides to finally hit Patches exactly 0.2 seconds before the stanchion comes into play.