I got banned from all computers in my secondary school and from taking the IT GCSE; final school exam in the UK.

Using the school news paper shared account, I copied the bullies coursework in to the public share, made changes to the coursework on my own user account and then copied it back to their work folder using the school news papers account.

MS Office keeps an "Last edited by" field so I got caught. If I had used the school newspaper account to make the edit I wouldn't of been caught. Rookie error. I too discovered a DCOM in the Windows 98 help file that revealed all the hidden shares on the network which scared the school. This was 2004 and I was 15.

Oh and the time, I bought a BB gun off someone at school. I was a librarian in the schools library and showed it off someone of the older grade year. The head librarian confiscated it and reported it to the headmaster. The guy then gave me a copy of Q3A and I stuck with violence the video-game way.