He may well have been deaf. I'm only 53 and I'm functionally deaf. I have a big sign that says to 'knock loudly'.
And I'm armed against intruders.
So yeah, this can happen pretty easily. Easily enough that there should be a training scenario.
/johnny
There is.
And the officer did precisely what he was trained to do.
You're almost dead. Can I take a Life Insurance policy out on you? I need money.