When you work for the gov, or large financial institutions, there are mandatory drills and courses you must take for active shooter etc. HG presents a great collection of the training thought on these events. #4 specifically the Run, Hide, Fight is important to the vast majority of staff since they cannot be armed. If you fail these proscribed courses, a followup with mgmt and hr is mandatory. Inability to pass leads to dismissal. The mindset is all of these terrible situations is key - keep your wits about you, OODA might mean you look for your chance to survive. So called safe rooms/areas are sometimes available and they teach how to barricade the room etc. Run part is obvious, hide less so, and fight, well that my fellow Armory folks is up to you.
