My partner (as I used to be) is a big UFC fan, and often records the really late fights and watches them the next day. He's occasionally put it on when our children have also been in the living room (aged 6 and almost 4, but has done so when they were younger) and I've asked him to turn it off as it's not appropriate, IMO.
Our almost 4 year old needs no encouragement to be physical - he's the opposite of our eldest who's never been physical when upset or angry.
My partner has a friend over to watch the latest UFC, and I've said little one can't watch as it's not appropriate. Little one is now really upset, OH shouting at me in front of friend, telling me he'll cover LO's eyes when it gets too much?!
AIBU for putting my foot down and saying absolutely not?!