Hey, remember Jaarkko Ruutu? Before he left the NHL after the 2010-11 season, signing with Jokerit in the SM-Liiga, the Finnish pest was one of those guys that could get under a man's skin like no other, drawing penalties and throwing opponents off their game.
He hasn't changed a bit. Here's a video in which Ilari Melart of HIFK just snaps on him. And, since Ruutu won't fight him, Melart decides to just go ballistic, punching Ruutu in the back of the head over and over, even going so far as to throw officials off of him to continue wailing away.