Sorry about this. 

This is a school IP, most of the kids here have decided that they can get away with anything because they share the connection as a group.

I would suggest, if possible, banning the IP from accessing wikipedia giving vandalism as a reason. Hopefully then they will realise the consequences.

I would report this to the tech department, but they show as much competence in these matters as a whale and bowl of petunias.

-Annonymous Student