I don't recall seeing any of this during the Stanley Cup Final LAST YEAR (you know, the one where the Capitals won it all?)
It is probably because Boston sports fans forget what it is like to win a championship. After all, it's only been about 4 months since the last time they won one (Patriots winning the Super Bowl...again) and 4 MORE months before THAT (Red Sox winning the World Series).
I guess they just don't have anything better to do than to get all angry at each other.
Check out the video below and click HERE for more!