Remember two things. You are responsible for every bullet that leaves your barrel and you must also always have clarity of the situation before pressing that trigger. This won’t stop you from getting shot by someone else but may prevent you from shooting an innocent person who, like you, is just trying to help.
If you see someone with a gun, how do you know they are a bad guy. I recall reading an article many years ago from TX, and a concealed carrier killed an under cover cop who was shooting at two drug dealers. He assumed the cop was a bad guy because of how he looked and the way he was dressed (remember under cover). No clarity of the situation.
Giving verbal commands is an excellent way to gain that necessary clarity. If they point the gun at you, you now have that necessary clarity which you didn’t have before. Before you only had an assumption, and you know what they say about assumptions.