shootniron, I don't enter into bar fights, mutual combat, etc.
Where I live, robbery is a forcible felony. If somebody wants to mug me, but didn't bring a weapon, that would be poor planning on his part, as deadly force is lawful for defense against robbery.
This is not the case in many jurisdictions, but is the case in many southern and southwestern jurisdictions.
Now, if it turned out that I could handle the assailant quickly using bare hands, then fine. But that would mean one of two things - either I got a fast takedown or TKO on the guy when he first made contact, or else he opted to back off when his attack went south.
Note: The last time I had a guy take a swing at me, it was some idiot who had mistaken me for some other guy he was going to fight in the parking lot of a Hooter's. Came in from my left side, and I picked his right with my own, and slipped around to his right rear flank. Reflex action from many years of aikido, plus some kenpo. Guy looked pretty shocked, said, "Sorry man, thought you were somebody else..." and I let him leave.
Didn't even have to throw a punch, or lock him up, so I definitely wouldn't have drawn on him.
But by the same token, at my university, years ago, a guy took a punch, fell, hit his head on a car bumper, and never woke up.
I don't casually enter into fights, and if somebody forces one on me, I will assume very bad intentions.