[elboru]

Do you know if German Shepherd share this closeness to wolves? I've met some really well behaved GS, but then I've met others with more wild like behaviors.

I used to own a beautiful GS, the first year he was like any other dog, he was really intelligent, playful, obedient.

I used to train him every day, so I was shocked when he started to misbehave, he wouldn't listen to other family members other than me, he would even growl at them. When I arrived home he would get exited, but instead of coming near for me to pet him, he would go around the yard, over and over. It came to a point where it was dangerous to have him around the family, so I had to took him to a shelter, that was really sad. I used to think a well trained dog will never be a problem, maybe he needed a more specialized training program.

[arkades]

They are not. The modern GSD is only about a century old, but is a standardization of three foundational breeds of working farm dogs that have been around for ages.

Aggressive does not work well with herding - they're surrounded by prey all day.

Looks like you just had bad luck.