Hello from Ohio
We recently adopted a 3yr old GSD from my Mother in Law who had adopted him about 14 months ago from a rescue.
Sarge was locked in a room for most of his puppy life and developed a spinning obesession and biting his tail. His tail eventually had to be docked by the lady who rescued him.
Today, he is a well adjusted dog that recieves lots of love from my wife and I and three kids. He LOVES kids. He still spins when he gets excited or aggitated but usually stops on command or a light touch.