it seems that this violence became part of many families lives :S, that is why he accepting this fact because sadly it is happening and based on that he said, they got the right to defend themselves ...

I believe it's common sense, you don't want to fall into one crazy a**wh*** man squeezing your neck to death and you would be just smiling or not fighting back ...

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment. (Gautama Buddha)