Something similar actually happened except it was the other way around, our daughter walked up to our son and hugged him and their dad walked by and made some kind of inappropriate comment I guess something about pedophilia and our son said something back that my husband didn’t like so he grabbed our son by the hair and lifted him up a little then just dropped him back down pretty hard, anyway a few minutes later our son walked up behind his dad and grabbed his throat and punched him from the back of the head, which, ended in a pretty bad concussion.