@BudrykZack I think most teachers, like me, have imagined exactly how we would attempt to do just that. I’ve told my students I would do that. I’ve sat through training videos on how to attempt that. I would definitely die trying.
@ParkerMolloy Yes! It’s already standard. Every school I’ve taught at or been to since 2008 has 1 main locked entrance for outsiders. Staff have keys to other doors for drop-off/pick-up, recess etc. Sometimes a door gets propped open for recess, field day, or to catty boxes to one’s car.