That's a Canadian and NY thing and I can say it because I married one and lived in NY for 4+ years. Fans acted like animals throwing beer bottles, batteries, pencils, dead animals, all kinds of stuff on the ice, courts, whatever sport is being played. Not sure how they got some of the stuff into the arenas to begin with. To be truthful NY city and the city of Toronto have the absolute worst fans as a collective whole. Disrespectful, trash talking punks who think they can do whatever they want because they are in a mob situation and live in BIG bad cities. My experience / opinion having lived in Alabama, Minnesota, Virginia, North Carolina, DC, Ohio, Upstate NY.