I'm a Penguin fan.
I'm not a Hurricane fan but I am happy when they do well because it makes life more fun where I live (unless they're in direct competition with the Penguins). I have red to wear to the arena if the Pens aren't in town so that I can be a part of the crowd. I suppose they are my second team but other than going to games just to see live hockey, I don't really follow them at all.
There is nothing wrong with people cheering for multiple teams. I just really don't have time to devote to more than one.