40 some odd years ago (in a bar) I overpowered some feller who was slapping his girl around and while in this process, the girl hits me over the head with a beer mug. Go figure.
Not uncommon. Lots of police will tell you many simular sad tales.
Around the same time as you I was a young deputy in West TX. Got a call to an address we were all to familiar with, they were regulars. I walk in and she’s bleeding from the mouth and the nose, he’s got blood on his hands. I took him down and was putting the cuffs on him, she sticks a 4 inch kitchen knife into my left lung. He got 90 days in county she got 3 years in the state.