While this might seem like a win-win situation for both of you, and you might find for a time that you can get away with, it comes with considerable risk. Even if you have done this successfully and gotten away with it, if there comes a time when your dog wakes while you are out and becomes distressed, you may well find that your dog’s anxiety becomes worse. Now your dog has learned that they cannot trust you and that they had better keep a much closer eye on you. Honestly, it is just not worth it. And I am not recommending this to be clear; I would sooner you walk out the door in full view of your dog than teach him that they can’t trust you.