A tactical approach to deterrence is the carrot-and-stick model, which uses a promise of a reward (the carrot) and at the same time a threat of punishment (the stick) to deter behavior. In our household, we sometimes try to deter fighting between our kids using dessert as the carrot and loss of iPad time as the stick. It's a form of good cop, bad cop.
Chapter:
Dealing With Conflict
Chapter:
The Only Winning Move Is To Not Play