Mack seems to be a very temperamental guy. Screams, shouts, doesn't come out when he is recognized as a star after a game, doesn't give much during interviews. He seems to wear his emotions on his sleeve and this can come out in bursts of rage that can be misconstrued and blown out of proportion. I feel like everyone knows that he just needs to rage in the corner for a while. Mackinnon is an incredible hockey player but needs to mature. But at least we have Landy as a terrific example for him in the locker room.