It's wrong to bribe your kids.
Josh has a migraine, and he has a long drive with his kids ahead of him.
Josh wants his kids to be quiet on the way back home.
Josh asserts his authority as the father and warns his kids that there will be consequences if they do not keep quiet.
Josh promises to buy his kids a new video game if they are quiet on the way home.
Josh's kids learn not to push the boundaries with their parents too far.
Josh's kids are encouraged to behave badly in order to rewarded to stop.