Please don't start painting us all with one brush. There are idiotic fans in every city. The same crap went on for the leafs in Philadelphia as well as other teams in other citys. Its the nature of the beast. Good and bad all around. Not just leaf fans. I don't condone what some of these dinks do but you ask around and I bet most NHL players will tell you that this happens in most cities where they are very passionate about their team....
fa·nat·ic: A person marked or motivated by an extreme, unreasoning enthusiasm, as for a cause.