Thanks, Ping.
***
Curt,
Circumstances always dictate. In the case of the situation that we actually showed. There was no reason to think that the person could harm me from outside the door (ie- no firearm displayed) and I was both off angle and behind some cover (kneeling behind a book shelf, exterior spiral wrought iron staircase and exterior wall. I was gun in hand, in the ready, on the phone with 911. In that case I would 100% all the time suggest the warning not to "give the bad guy a chance"... to give myself a chance not to need to shoot someone. It is the classic "could vs. should" argument. If I can keep myself, or a student, from NEEDING to use lethal force, I'm going to.
There are a million ways to change the circumstances so that I wouldn't "call out"... in fact, you'll see at least one of them later in the season!
Thanks for watching.
-RJP