I'm a pacifist, and generally side with law enforcement even through their fuckups, but someone deserved to hang over the Uvalde shitshow. Accidentally killing suspects who may or may not have been uppity is doing your job poorly, but leaving a bunch of defenseless kids locked in a labyrinth with a gunman is not doing your job at all.
Between coward cops and dissolute gunmen at school or work, it's never too late to learn how to build a proper barricade. Don't stack furniture in front of the door like in zombie movies; the door already serves the purpose of blocking-- instead, hunker down in a classroom/office and build a train of furniture extending from the door to the opposing wall sturdy enough that anybody trying to open it is pushing a column of furniture against a wall instead of shifting a pile of shitty MDF. Then get the hell away from line-of-sight of the door. Expect bullets fired through it in frustration.
Between coward cops and dissolute gunmen at school or work, it's never too late to learn how to build a proper barricade. Don't stack furniture in front of the door like in zombie movies; the door already serves the purpose of blocking-- instead, hunker down in a classroom/office and build a train of furniture extending from the door to the opposing wall sturdy enough that anybody trying to open it is pushing a column of furniture against a wall instead of shifting a pile of shitty MDF. Then get the hell away from line-of-sight of the door. Expect bullets fired through it in frustration.