Once you make a decision to carry, your outlook on these things has to change. There are no times where it will be ok for you to participate in the jawing and shite talking back and forth. You have to be able to ignore and walk away. If the person will not let you leave and you feel in danger, thats a different story.
This is the only correct answer. You can't get into fights and carry. If you can't stop escalating verbal tensions you do not need to be carrying.
I used to be a brawler (in fact I bounced at some large clubs) so I can handle myself better than average, but unless I am defending myself - and I mean really defending myself or family I do not fight.
Now if need be, I will kill but now a days there is nothing between peace and killing when it comes to personal protection.
Walk away, or shoot away nothing in between.