Bruce Bennett/Getty Images
Patrick Kaleta is one of the league's most despised players, and his attitude and arrogance don't earn him any points with his colleagues around the league.
His headbutt that earned him a four-game suspension was the worst thing he had done to date, before the Buffalo Sabres squared off with the New York Rangers last week.
When Matt Cooke ended Erik Karlsson's season with a freak injury that occurred along the boards, he reached out to Karlsson, after the fact, in apology.
Kaleta has a history for showing disregard for other players, and after he sent Brad Richards into the boards in a violent manner, he chose not to apologize and attempted to justify his actions.