Personally I would keep the Dog and lose the Brat.
If I ever hurt our Cats , my Mom would give me a boot where it hurt.
Its getting scary that theres so much meaness and hatred in that youngster.
I pray that Dog ends up somewhere good.
I know a school teacher and she actually has to be careful around students who are 8 or 9 years old.
One actually set up her 14 year old babysitter to be raped and beat up and they put it on the internet for laughs.Its like the Village of the Damned.