Closed-circuit cameras, motion detectors and roving security guards are nothing new in many schools. But a school system not far from here has a unique approach to protecting their buildings. Prince William County, just outside of Washington DC, builds an apartment attached to each school and offers it rent-free (with paid utilities) to people willing to be a live-in security guard. Considering one-bedroom apartments in the area can go for as much as $1000 a month, it’s no wonder the system has a waiting list for the job. I can’t say that this arrangement would appeal to me even when I was just starting out. But, considering the reaction I’d get when I ran into my students outside of school, I swear some of them actually believed I did live in the building.