There was absolutely nothing wrong with what Carkner did IMO.
The Sens have an absolute gem of a defenseman that was being roughed up by a guy who is 6'7 and shouldn't be roughing up their all-star who can't defend himself. That's absolutely why we have tough guys in the league, so the super stars have the room that they need to do their thing.
Carkner went out and gave it to Boyle, and Boyle didn't bother fighting back... laying down at 6'7 is a coward's move... especially when he knew why he was facing the music.
Carkner sent the message and did what a good teammate was supposed to do in defense of their superstar. It was a prototypical example of GOOD enforcing and sent the message that Karlsson was not to be ****ed with... Karlsson wasn't bothered after that, and Boyle wasn't nearly as much of a factor. As a player, Carkner played well for a bottom pairing defenseman, but he wasn't the reason the Senators lost... The Sens lost because they weren't as deep as the Rangers, Lundquist stood on his head, and they didn't have enough secondary scoring (i.e. depth).
"The Hand is fine, I got a shot of chromosone yesterday." John Kordic on the status of his hand.
"Let's get out of this sh*thole."
Phil Esposito, on Winnipeg, after Team Canada lost game 3 of the 1972 series to the Russians.