...is when the door makes a sound like a key in the lock and the dogs go apeshit except no one is due home.
Springfield, momma loves you.
Puppies, have a biscuit you cuties! Rrrrarrfff!
(Yeah, cursory check made at door - not gonna do full perimeter since Trooper has likely already called the locals to make a run through and he'll be home presently.)
Times are rough out there and people who might have never tried a door before may damned well consider it worth the risk, now.
Carry: every day, every where, with enough bullets to make a difference. Period.