A sometimes cute but other times quite infuriating habit that some dogs have it to constantly bite the corners of furniture. Sometimes this is something that helps them such as times when they are only puppies and don’t know any better. He could also be in pain from the changes his teeth are going through. That in a way is excusable but there are other times when he is already at an old enough age where biting the corners of expensive furniture just wont do. You worked hard to be able to purchase them and you don’t need them to go to waste because your pet has a very bad habit of destroying it.