I agree, as long as it wasnt punctured, id say its fine. Also agree there's nothing wrong with feeding live if dont right. Im not saying that because your snake got bit that you're doing it wrong either. As long as you were watching, and ready to pull the mouse out if it had bitten through, or started to bite again then you were doing your part. Glad the snake is ok. One more thing, what type of enclosure is the snake in?