I know what you mean. I have seen people at gas stations with their nose in their phone and didn’t notice a stranger until they tapped them on the shoulder.
When a stranger gets within about ten feet of me I tell them to stop and if they don’t I then yell at them.
All the while with my Glock hot and ready.
“When a stranger gets within about ten feet of me I tell them to stop and if they don’t I then yell at them.”
You need help, hoss.