I was a wrestler so I have had experience in fighting/restraining without causing any harm.
Onc again, have you ever had to restrain a spouse or girlfriend? It is one thing to restrain someone who isn't attacking you, such as breaking up a fight. I've done that many times - I'm 6-7 and can get my arms around just about anyone.
It is another when a raging woman is coming at you. And the cops will be showing up with laws saying that someone needs to go to jail - and whoops, she has the bruises on her arms because she fought you restraining her.