Cliberslacker,

+1 on being prepared
-5 on posting your school. That's the sort of info you should keep offline.

As for improving your preparedness factor, study your surroundings to see what tools you can improvise, what non-tradtional exits there are (windows, duct work, etc..), and what possibilities exisist on and off school grounds for acquiring tools if needed.

Learn everything you can about everything around you. Learn how copy machines and paper shredders work. Learn how much voltage is coming across the phone lines. Learn how to make a crystal radio from a pencil and a razor blade. The more you understand about science and what is around you the more options you'll have for making stuff in a pinch.

-Blast