Yup. Know your target. A rule not adhered to by a law enforcement officer. Just shoot at anything, dogs, strangers,… or your own kid.
A figure is moving toward you in a dimly lit garage. Generally, when this happens the individual is fair game. You open your yap to challenge them, they home in on your voice and fire a shot. You’re dead.
It’s not quite as easy to avoid as you might think, cop or not.
Live by the gun, die by the gun. I’ve been in his position. If you don’t live alone, you have to take the risk. Whatever got your attention is far more likely to be innocent than malice.