Just this. Husband was openly abusive verbally and physically to me and DC (ducks in a row now, it took a while as I didn’t want to just leave and risk shared custody.).
FIL was often at our place. He just sat there with a stupid passive grin on his face. How can you watch your GC being abused. He watched as me and DC fled our house. F him. I don’t want anything to do with him and I don’t want DC to have anything to do with him. DC are older now and I explained he sat by while abuse happened.
I tried the grey rock technique to stop husband abusing me. But I fought with everything when he went for DC.
So, grey rock, does it work or is it harmful.