This is normal, but can develop into an unhealthy preference in life towards pain - avoidance, which in extreme cases becomes the sole and self - destructive purpose of life. (elearningindustry.com)
If you don't provide your pooch with enough, your dog will use this energy toward destructive purposes. (petguide.com)
Puppies have a lot of energy, so the more you can expend on activities together, they less they have for destructive purposes later. (wagnwash.com)