if someone said that to my wife infront of me? how do you not start swinging.
Well, while I can understand the reaction - it would just do no one any good. You either hit him, and 'win' whether that be by knocking him out, hurting him badly in some other way or him bowing out - or you miss/he fights back and beats your ass. The 'good' outcome is just one of like 10, where the rest are all bad.