I have a 3 year old German Shepherd dog. He is as German as German can get... both parents are champions in Germany. He is self assured, powerful and protective of those he loves and he considers our property his responsibility.
His only goal in life is to please me... 24/7. I got him when he was 9 weeks old and he has been with me every day... every day.
However, he loves people and is friendly to strangers and I suspect that a stranger could convince him to willingly go with them, especially with an offer to play ball, unless the stranger showed aggression. Fortunately, he has never outside of my control or sight.
I have 2 German shepherds, they are siblings from the same litter. I got them when they were 8 weeks old and we are one happy family. They are going to be 4 yrs old in November. They are friendly to strangers to a point, don’t really know how they would react to a stranger if I weren’t around. There is one problem with them, they are so bonded to me they won’t do anything unless I am with them. They will go out in the yard as long as they can see me but if I walk out of sight they are at the door looking for me.
Junior weighs 105 and his sister Libby weighs 70 but she rules the roost. They are my pride and joy.