That's right, you can't legally kill someone over a fist fight...
Sometimes in life you get your ass kicked, it happens...
That doesn't justify killing someone...
a.) Yes, you can under some circumstances. Being assaulted by someone using their fists is not a "fist fight".
b.) No, it doesn't - not if I can prevent it.
c.) Yes, it might.
So we have a run of the mill street fight, the opponent has no weapon, has shown no indication that he has the means to kill you or cause serious bodily harm, he wants to fight you but not a single punch has been thrown yet. Your (and others) response to this is shoot him?
First...What the heck is a run of the mill street fight? If you are talking about mutual combatants going at it, then no, you don't get to introduce a firearm if you start losing.
Second...He DOES have the means to kill me at the ends of his arms and legs.
On the other hand...if you're talking about a unilateral threat to punch my lights out...I will step back...declare my peaceful intentions...command him to stay away from me...
If he initiates an assault at that point, yes, I may draw my firearm under those circumstances. If he continues to come at me threateningly - he is likely to get shot - before a single punch is thrown.
You shoot him before he has a chance to hurt you. You get arrested. You are now in court and trying to convince a jury that you were justified in the homicide...your defense is?
"He threatened to initiate an unprovoked attacked...I told him to stay away...I let him know I was armed...I backed up...he kept coming at me...I aimed my weapon and shouted "Stop, or I'll fire!"...he kept coming at me..."
"I was in fear for my life, as there have been far too many cases in our city recently of innocent people being killed or permanently injured by "unarmed" thugs using their fists and boots."
The only truly unarmed man is a quadriplegic or a quadruple-amputee.
By the way...In this city a man was attacked by an "unarmed" mentally ill man suddenly and without provocation. The victim was able to get to his concealed handgun and shoot the fellow. No charges were filed.
Also...Our beloved "Tuba Man" (a well-known street musician) was attacked by a gang of kids and was killed by a blow to the head.
And...A much-admired middle school teacher came to the aid of a women in distress being assaulted by a stranger at a bus stop. He reached for his phone to call 911 and was struck to the pavement, suffering permanent brain damage. He'll never teach again.
More?...A man was watering the flowers he'd planted in a street turn-around and refused to move his hose for some impatient teenage girls who wanted to get by. They called a boyfriend who punched the man in the head - once. His head hit the pavement and he died almost instantly.
Need I go on?
I won't provoke anybody, and I won't try to correct bad public behavior. I'll avoid bad situations and areas if possible. I'll talk my way out of a tight spot if possible, or just run away if necessary.
But I'm not taking a punch from anybody - for any reason.