Trying to get through hardware/software locks, content filters, firewalls, spyware etc. at school is usually the first experience kids have with "hacker" culture. For a lot of them (myself included) this eventually leads up to a real career in the tech industry. So godspeed, all you young rebels.
I would be more sympathetic to this line of thinking if I didn't have a 16yo who's going to be lucky to get through high school because he can't focus in class. I would have been the same at his age, if someone had plopped an internet connected device on my desk and told me to focus on school work.
:)