Some owners are just irresponsible and do not put a leash on their dog and let it rub and bark at anyone. Others don't clean up the business their dog left.
Ah, same!
Plus, there are some who buy the big German shepherd simply because it's cool and not see that their house is too small for it, or people who just leave their dogs in the park in the name of taking them for a walk.
They aren’t cute when they grow up. There is a reason why it is called shepherd, because it is literally a dog to keep sheep in line when they go out the big open field.
This is just animal abuse to keep a big doggo in a small apartment when it is supposed to be in spacious environment.