A) Deterrents don't work very well, rarely work at all with desperate people, and far less with people who have mental issues. B) if you end up in a conflict i

A) Deterrents don't work very well, rarely work at all with desperate people, and far less with people who have mental issues. B) if you end up in a conflict it's always better to run. It's safer for you than to escalate. In sane countries failing to run can invalidate any claim of self-defense. Thus, you'd find yourself on the hook for "armed assult". Even if you state or country is crazy enough to have a "stand your ground" law, you are always better served by running away or de-escalating by other means. Your ego might be hurt, but that is rarely fatal :)