this all depends on the situation, qwhos involved, sizes, provication and what not.
as a rule i dont hit women. as a rule i dont need too. i avoid those kinds of women that would throw a punch in the first place and in situations where i cant avoid them i find that there is other ways of stoping them if they become violent than to throw a punch.
ive always thought that if they are tough enough to throw a punch than they are by default tough enough to take one. for me though its not about what the woman does or how she behaves its how *I* behave that is the issue.
ive worked as a bouncer for years of my life and ive seen many different kinds of situations, ive seen women who think nothing of throwing a punch/slap because they are sure that they wont be hit back, in that case i dont bat an eye if some dude slaps them back, its a lesson they need to learn. on the flip side ive seen women who wouldnt dream of being violent get slaped around by men who think with their fists and not their brains, in THAT case the men need the beating.
i say as a guy you should work to avoid hitting back to a MUCH larger degree than you would another guy, but that doesnt mean an automatic 'never , just dont do it' mentality either. our fathers and grandfathers rules dont apply too the WOMEN now days, so why should it govern the men? my grandfather tought me this 'rule' of DONT HIT WOMEN EVER as a child. i grew up with it and held it an an article of faith from a wise sage and prophet. trouble is that some of the women ive met in my life never got the set of instructions from their grandmothers that told them not to provoke men to the point that they NEED to hit you.
these social codes only work if BOTH sides follow them after all.