@TechConnectify Great video as always, and you reminded me I need to fix the spring hinge on my garage-to-house door.
Stupid story: when I was in high school, we had some fire doors with electromagnetic door holder-opener-thingies in a long hallway similar to that school footage you used, and a breaker panel at one end that was never locked. A fun game which I “heard about” was sitting by the panel and flipping the dedicated breaker just as someone approached those doors, slamming them in someone’s path.