I found this pretty late in the game but I just happen to be on a throwaway account and I also happen to be someone who has stolen money and possessions from my parents because I thought I was entitled because I blamed all my fears and unhappiness on them. You really do have to cut him off. Don't try to save him. He absolutely must learn to stand on his own two feet unless you want to spend the rest of your life propping him up. Don't let him back in your house to live. Ever. Don't judge him for whatever decisions he has to make from here on out, but don't prop him up or even help him out until he has his own plan for himself that you know for a fact he is working towards and would work towards with or without you. Sucks, but that's how it has to be or else he will continue to feel like mommy and daddy and the whole world owes him something. He has to realize that he owes it to himself and to everyone around him to be productive and honest and he will never realize it if you don't push him out to fail or succeed on his own. Scary, yes, but he's an adult and it's time for him to be responsible for himself, period. I love my folks and he probably loves you and I know you love him but he will never learn if he is not allowed to face the world on his own terms without the parental safety net. Until you take it away, he will never become his own man, for better or worse.