I have a GSD who is 8 weekd old. Is it too soon for her to ne stubborn already?? When i open the door to let her out she looks at me like i am nuts, and when i go get her she takes off She also loves to stop in the middle of a very short walk and just sit there! She is doing good training wise. she can already sit, lay down, and shake and i have only had her a week and a half. I am just curious if this is normal puppy behavior or if she is being a pain in the butt.