Kass WAS chirping Gagner, and considering the run by from Perron/Gagner, he was justified in getting a chirp off. Kass clearly was stating 'what's that (point to chin area)", mocking Gagner's facial protection. I don't even care that he did it, this is the guy we've wanted for ages, it's this kind of sociopath we were largely missing in the Bruins final, where snark and goonery won over skill and wit.
Kass might be a sociopath, but he's OUR sociopath, and I'm happy to have a guy that actually enjoys the physical component of the game.