It's not okay to give up on your child.
Joan warned her son that he'd get in big trouble if he ever got arrested again, and he got arrested.
Joan needs to either punish or help her son.
Joan gets her son out of jail and talks to him about what problems he's been going through.
Joan decides to not help her son and doesn't call him in jail.
Joan's son feels that he can depend on Joan and feels like he's taken care of.
Joan's son starts to become depressed and has no one to turn to.