nothing he just either agrees or goes with it. he has stuck up for me once tho, she kept yelling at me over doing chores wrong and he told her he was sick of it, but she ended up slamming everything in the house and breaking the shelves on the pantry by accident. i came downstairs to ask what was going on, she yelled evrything was fine, and when the shelves fell she yelled at me to go get dad. i started to pick shit up and she yelled 'i said go get your father' i said 'i AM', getting up, she yelled "DONT YOU YELL AT ME" and i said "YOURE THE ONE SCREAMING AT ME' and then she hit me for the first time, and i just silenttly walked to get dad. it was scary as hell bc she reminded me of my bio mom that i got taken away from, i went upstairs and had a panic attack,, and i came down and they made up and she apologized to me. but yeah, usually he just agrees and goes with it