All good points, Leo, and a smart move on your part to avoid an ugly confrontation in the 'parking lot' …
As to the why of men 'going to violence' …the psychology behind it is very complex indeed.
But I think that probably the biggest reason is 'MAN'S PRIDE' if you will.
Also if you are insulted, it is extremely difficult to 'let it go' without feeling demeaned in a myriad of ways.
We have to look at the problem of 'self image'
Quote:
Face saving (or saving face) refers to maintaining a good self image. People who are involved in a conflict and secretly know they are wrong will often not admit that they are wrong because they don’t want to admit they made a mistake. They therefore continue the conflict, just to avoid the embarrassment of looking bad.
Imagine the great number of ways our self image can take a beating…something that stays with us longer than any physical damage we may have suffered had we chosen to engage.
The 'monkey dance' as Rory describes it in his books.
Then we take martial arts and become 'men of respect'

…..And things get worse….you would think not….
but if someone says to you 'Shut the f!@# up or I'll beat your ass' _ the 'man of respect' inside of you, now with a high Dan rank…won't let you do it…and in you are up to your ass in consequences that later you will regret not having avoided at all cost.
The people, who might have thought you were afraid, or so you thought they thought, will longer have forgotten about you…while you will be stuck with the consequences forever.
Tough questions, Leo