I read your frustration in your post. If you love little Coby and want to keep him there are things you can do. I belive Coby is only eight months old or so and too young to give up on. Most yorkie puppies go through a stage of rebellion. He just needs to be trained, have lots of exercise, chew toys and be loved. It takes time and patience. Have you read any training books or gone to the YT Training forum on this site? The are very specific answers to your training issues on the training forum. If you are committed to Coby you need to help him by showing him acceptable behavior before it's too late. There is still time to help Coby be the little guy you want him to be and many members here to help you. He is such a cute little guy by the way.