Chewing on valuable items is the number one problem owners have with their dogs and it drives from their experiences as a puppy so to prevent it, follow these puppy training tips.  Puppies are very curious animals and like to sniff things. They are also very aggressive animals and like to chew on things they like.  So they will chew on things often as a puppy.  It’s important to prevent them from chewing on anything.  It doesn’t matter if it’s a shoe or a piece of scrap paper that is trash, you can’t be selective on what they can and can’t chew because you’ll only be sending them a message that chewing is ok.