The courts cannot garnish a father's salary, nor freeze his account, nor seize his property on behalf of his children, in our society. Apparently this is because a kid is not a car or a couch or a boat.
For me and for I'm sure any actor, each role is a different challenge to prepare for in a different way.
I love it when characters surprise you, just like real people. When I write a scene I just try to make the characters behave in a way that feels natural to them. Sometimes that means they make a left turn and do something unexpected. Those are always the best scenes in my opinion.