Can I use Timmy to terrify mine into behaving pleas?
Start them young. Mine believed for quite a while. I'm kinda surprised CPS didn't visit. But HEY! They lived! That must be good for something! If you start young, you only need to beat them a few times before the threat is real. By "beat" I mean spank in a loving way. No excuse for abuse.
Best parenting book there is, is a dog training book. 1) be kind, 2) be consistent, and 3) love and praise them when they do good. Remember Timmy. Poor Timmy.
Make sure both parents are in and back each other up. Can't stand when one parent says no, and the other makes it OK. Homey don't play that.