It reminds me of my college back in High School, he got canned for playing around with hacking tools. He used to show me all this cool stuff he did, like taking screen shots of people screen, logging every users PC activity, sniffing all their passwords and then checking out their emails.
He used to be really good but never liked respecting other peoples network. Anyway, you got what I mean and I would strongly advise you to drop what you are doing. Its illegal and frankly speaking could get you expelled. Now I don't know what your intentions are, but do this kind of stuff on your own network.
I know its cool what you did, but think about the consequences. Keep in mind that, everything you do on a network is being monitored and logged and it could be used against you, if they want to catch you. Now something you need to learn, is that when you do something illegal, never go around telling people what you did.
This can have serious consequences for you. I am telling you this from experience. So don't risk it play cool dude!