You've only had the puppy back for less than a week. During this time, it has eaten three pairs of your shoes, four Stephen King novels, maybe two fans?, chewed the door of your bathroom, and this morning you found it chewing the power cord of your laptop. When you discovered it, it was happily chewing on your wallet and credit cards. If this continues, your expenses will be high, and it will also be very dangerous for it. So, you should intervene with its behavior.