The fact that some schools use the actual school itself to protect people is wise. I remember last year, theoretically, if someone was to break into the school, it would be too easy for the person to get into the rooms. There were big windows in the door, and there were two doors. That isn't very intelligent. There should be hide outs in a place, but hopefully, the chances of using them would be safe. It is also good for the school to have about 3 stair cases in case of a fire, or maybe more than a few exits.