https://www.facebook.com/DavidAvocadoWolfe/videos/10154158894776512/ We will see if the above actually works on the blog. But is is about a device that secures classrooms by barricading the doors. Yes, holing up where the invader knows someone must be, since it is blocked up. So just take the gun and shoot the door open like they do in the … Continue reading Maginot Line for Classrooms →