I would have been going in there after Joseph with a weapon if I was Kat
Seriously, I wouldn't care if it was my husband and that was his child too, if someone was beating my child with a belt and I could hear it I wouldn't just be sitting there crying and whispering "That's enough Joseph, that's enough". I would have grabbed a knife, baseball bat, something and go in there and put an end to it pretty damn quick. There's a difference between child abuse and punishment and that was child abuse. So what if the time period was different and hitting your kids was normal if they did something wrong? For it to be that severe it should have been put to an end by somebody. If she could whip his ass after cheating on her then she could have been a mother and done more than that during the belt beating