I'm not quite as extreme as you bro but I get where you're coming from. Cut the pie through doors. Asses every person in the room (body language). Find all egress routes (casually of course). Sudden movements get my attention even across the room. Shit I get on a plane I'm looking around at the passengers. Then I take a stroll to the head to get a better look. Drives the Mrs batshit!!! LOL But I will not go out because I wasn't aware of the situation.
Amen to that nobody will take out The 44 without getting fucked the hell up in the process. I might be a big guy, but I move pretty quick.