@Messalina:

Thank you for your wonderful post at me - but I would like to quickly throw this out there:

Unless you're trained in all kinds of ridiculous martial arts, the chance of a woman being able to take down a large and enraged man is very low, even with plenty of lowblows. You would need to use a weapon or have extensive experience in fighting to have much chance.

To be honest, if my boyfriend and I were to get into a serious fist fight with no holding back on either end, I may make a mark and could go for the balls all I wanted, but the effects would be sore balls and some scratches/bruises for him... and as for me, I might as well have jumped in front of a city bus. A woman's best defense against abusive men is simply to be able to tell which men are likely to be abusive and avoid them.
I mean, there's some scrawny guys out there who I could probably beat half to death, but my boyfriend isn't one of them.

I prefer to be honest with myself and know that a lowblow is only good enough to get a head-start in running away. I'm not exactly Olga the Female Body-Builder.

It's all a sexual thing.