Actually it's easy.johncanfield wrote:Okay, multilayer defense, I get that but rocks as the last layer? How do you distribute a pail of rocks in a crisis? I appreciate their thinking outside of the box but they need a better last layer.
Secure and barricade the door with chairs, desks, etc. to make fast, direct entry more difficult and to force an intruder to struggle through the barriers in a small area.
Distribute the rocks and place throwers in positions at multiple angles to the door. Elapsed time: about 1 minute.
Chances of disabling the shooter: very good, although there may well be a few good guys shot. That beats everyone shot. Sometimes that's as good as it gets.
This is obviously not going to work when the first shot is fired in your room, but it's not a bad plan when the shooter has started elsewhere and may attempt to enter your room.