This could be a window in a cafeteria that's open. Unfortunately, there are still places where people chain unused doors, and the problem is you can't get out. If you recall the 1955 Holy Angels fire in Chicago, that was the problem there. Identifying violence-prone students before they act is the best way to prevent school violence. Teachers are advised to look for withdrawn, depressed or angry students, students who seem to have few friends and students who display inappropriate behavior on a consistent basis.
Bizarre writing can also be a tip-off.
But identifying troubled students can be difficult, particularly because so far unruly students have not committed the shootouts in American schools. I think the kids who tend to be discipline problems tend to act out their frustrations that way, whereas the quiet kid broods and then explodes. The stereotype that many people have of the violent student is of a young black male, but middle-class white males have perpetrated almost all the shootouts in American schools. I'd say the Catholic schools in Harlem are among the safest places in the world. Shaughnessy said she doesn't think schools are over-reacting to concerns about violence, but she thinks parents are.