Hey Vinnie:
I have an 11 year old GSD, and he is the sweetest boy you would ever want to meet, when my GF and I play fight, he will bark and get between us, but has never tried to bite her. GSD’s and Rotties get a bad rap because idiots are allowed to own the breeds.
So Kudos to you and I hope you and your GSD have a long and happy life, Take care and God Bless you and your dog.