siphotos:

Mike Milbury and his Bruins teammates invade the stands at Madison Square Garden during a 1979 game against the Rangers. Though chances are slim fans will see a brawl like this, SI&rsquo;s Stu Hackel expects more violence in a shortened season. (Bruce Bennett/Getty Images)
HACKEL: Five things to watch in a 48-game season

There&amp;#8217;s some friction for ya!