I had that same fantasy, too! When they were out I had fantasies of the police knocking on the door to say they had been killed in an accident.
Whenever I heard their car pulled into the driveway my heart sank and the dread returned to the pit of my stomach.

Later on I did spend several years in a foster home where I nurtured the younger children and looked out for them. Sadly the foster parents were no better than the other parents. I tried to protect the younger children from their abuse but I failed. I tried so hard to help one boy who had been horribly abused in his own home before the foster home, but I found out a few years after I left that he didn't survive.

People are ****.