This is the first page from my book. Thoughts?

I love it! Very entertaining, and easy to relate to! I think we have all seen that situation occur in some way, shape, or form. I like the Mythbusters reference in the end, nice finish, witty. The only criticism I would have to offer is to watch your repetitive wording; for example, reread the part where you say you're heading off to the staff room...I know this is a rough draft though, so just a suggestion. I might even think about rewording the 'blinking idiot' part, it is near genius!! I would love to hear some more, and that means you have accomplished the huge hurtle of getting the readers interest! Good start, keep writing!