Like I always say.....you wanna act like a man then take it like a man. This is not in all situations of course. If a female wants to attack like an MMA fighter or use a weapon(tool) of some sort, then it is fair game.
But, if a female just shoves, pushes and slaps a man......then do not hit back. There are other ways to get your point across.
From just the video evidence, Mixon was in the wrong. She didn't do enough to warrant a Tyson TKO. If this was a long, drawn out verbal/physical fight, he should have just went home and called it a night. Can't put yourself in that situation by even being there.