I'm assuming that most forum members are male, but Katie et al can certainly tell us about knocking the shit out of some woman...
I have hit a woman twice in my life. Actually, it was the same woman ==> my mad, bipolar Thai ex-wife.
The first time was when we were having an argument (which I was losing because you simply cannot win against a stupid person). She became physically violent and crazy. I slapped her on the face, which stopped her for about 3 seconds. Then she went ballistic at me, like a miniature (she's 145 cm tall and weighs 33 Kg) atom bomb
The second time was when I was at home looking after her new-born baby (er.. not my baby). She was out partying, came back drunk and accused me of sleeping with other women (we were already divorced and I hadn't yet been lucky enough to find alternative pussy). She tried to physically drag the little baby out of the room, so I slapped her to try to stop her madness. Same response as last time ==> a few seconds of silent shock and then BANG!!
I decided that the baby would probably come out of this in a better shape if I left rapidly....
That was maybe 10 years ago. Never ever felt the need to get physical (in the combative sense) with anyone (man or women) since those dark days.