Even if you left your pistol firearm-du-jour in the car, everybody else has one.
http://www.dallasnews.com/news/crime/headlines/20160712-robber-with-ak-47-shot-by-waffle-house-customer-desoto-police-say.ece
Geez, what kind of nut picks a Waffle House in TEXAS to rob? 2:30 in the morning? The concealed-weapons-per-capita is probably hovering around 5 then.
Here as good as anywhere.
Mike Tyson is better at de-escalating than the LAPD.