While still in high school I worked part time as a network admin for the school. We had just begun to incorporate a laptop program that started with the 6th graders. At time time our biggest trouble was students that bent the hell out of the wireless cards that stuck out of the side like a sore thumb. The reason that was the biggest problem was because our policy was one of educating the students about general best practices. If they came in with a trojan, adware, malware...whatever we just used ghost to set it up clean right away. The students lost all data important to them and gained in the lesson that we'd fix the computer but we're not going to hold your hand or save your data. Porn? not a problem on our network. We blocked what we expected and used a cron job to grep out any of a set of "naughty" words that came across the firewall. When any one user hit a certain threshold they were brought in for a "meeting". This was enough of a deterrent that by the end of the first month more teachers were brought in for meetings about acceptable network use than students. Even more surprising? It was an all boys school.
