The lines get really blurry when self defense comes into play. It's always wrong to hit a woman, but at what point is the man allowed to use physical restraint to keep her from doing him bodily harm?
Many years ago I had a long term employee in this situation. His lady friend came at him swinging a hatchet, connecting with his shoulder. She swung it again, and he picked up a chair and knocked her down. She called the police, and they took him to jail. Charges were eventually dropped, but it seemed like a crock that he got taken to jail for defending himself against assault with a deadly weapon, especially when he had the wound to prove it.