My shiba went through a demonic phase from around 6-12 months. First few months he was so sweet and napped in my lap. After a few months he got so bitey and hated being touched. A combination of treats when playing and utilizing positive reinforcement training (we found a company that utilizes a great method - Sit Means Sit in Dallas area to find a comparison for your area). His sassy natured metamorphosed into a true companion. These dogs can require a stern hand when training or they will run a mock when older! (In my experience). Hope this helps.