Here's the deal about "teacher propped door open" If you've ever worked in a secured building, you've been trained on how it works. Propping a door open is an offense that (if caught) you would be fired on the spot. And the teacher would know that. You get trained, you sign papers, you JUST had an active shooter drill So why did he KNOWINGLY violate a rule that could get him fired? Was he in the process of unloading/loading stuff into a car? Was he hot and needed a little breeze? Was he TOLD to leave it open? It may be innocent stupidity but certainly leaves a lot to be questioned.