ROFL! Can you imagine going thru life that jacked-up?
I don’t know about EVERYONE in the room, but if you carry a weapon, you need to take a few seconds to see the folks around you and where threats might be and how to react. More like “anyone” in the room. (I’ve heard it as “...but have a plan to kill anyone you meet.” Not bad advice really.
And not so much “jacked up”, just “heads up”. (As opposed to yapping on a cell phone all the time with NO IDEA of what is going on, like so many folks are).
Our military had to do that regularly when Iraq was nearly lawless.