I'm glad you told them that you'd send him to the shelter if he got out again. What a bunch of dinglecheeses. He may be back. If he gets loose again, he'll most likely find you. He knows where the lovin' is.
I'm sorry they are such buttheads. They don't deserve such a cute doggie. Hopefully they'll be more responsible.
What a cool foster mommy you were, NA. Good for you. We need more compassionate people like you in the world.