My mother essentially didn't know any better. Her father was a tyrannical nutter who gave her a "good hiding" in front of me when I was four. Then one day when I was around 5 years of age, I got on a bus and went to town by myself. When the police actually found me and brought me home, my grandfather said to my mother, "Now give her a hiding she'll never forget."
My mum said, "But I don't want to hit her."
My grandfather said, "If you don't, I will."
The day he died was the day that our family started to get close again.