[wambotron]

The drills don't make sense to me. If it's a drill to protect the students against one of their own, that student has also been in the drills and knows that quiet rooms still likely have people in them.

If I remember correctly, the last school shooting had the kid shooting through a door's window into a classroom and killing people who were hiding in the corner. Obviously he knew they were in there already. The drilling he was in would've showed him that.

So what is the point of it? You are giving away any and all secrets to the potential assailant. It's nothing like a fire drill or a "mother nature" type of drill. They should really just stop doing it.

[rhcom2]

I don't think it is about actually hiding or being secret. It's just about stalling. Getting through a locked door takes time that responding officers can use to get to the school. Most school shootings stop as soon as the first responding officer engages with the shooter.

[AstralStorm]

Locked door will not stall a person with a gun willing to shoot through said door. And as they know about the drill they will not be fooled into thinking nobody is there. Plus they can just shoot the lock off. And building a real barricade takes a long time, strength plus skill.

It will prevent any solid response from you though, other than jumping out the window (if possible).

This is why people are trained to evacuate not stay putt during danger. Or stall it actively if they can. Same principle as in fires, earthquakes, floods, bombings or other terror.