Most dog owners are clueless to most of their dog's behaviors.
Example:
A person comes home. Their dog comes running up. They tell the dog to go away and get back.
Dogs are pack animals in their ancestry. Some used to stay at home, guard the den, and watch the kids. The others would leave to go bring home the bacon. Upon return, it was the human equivalent of, "Hey, glad to see ya. Are you okay? How did it go? Got any goodies?"
Dogs will usually be a lot better upon returning if you just take ten seconds to rough them up. Dogs do this. Breathe or blow in their face. Dogs do this. Say a few words or utter a few sounds. Dogs do this. If you do this, you will notice that then the dog will usually run off, or at least back off a bit. But they won't until you do this, and sometimes will continue for a long time to try to get you to acknowledge them and heal the rejection you gave them when you first came home. And continual rejection can make a dog do other things to get your attention and acceptance. Most owners don't realize they are rejecting the dog, but that is all the dog sees.
Real pet owners know their pets. They know the different barks and sounds they make. They know when they are stressed, happy, ill, tired or hungry. They interact with them on the pet's level, and understand what they are doing when they communicate. They play with their pets. They leave their pets alone when the pets want a nap. They simply are in tune with their pets.
But most pet owners buy pets as furniture and a show of how caring or rich they are. Some buy them, as pit bulls, as a show of how tough they want to be. They leave them alone out in the yard. They don't spend a lot of time with them. They are clueless to their pets behaviors.
Just MHO and observances from owning many pets. And enjoying learning animal behaviors. I love those outdoor problems that show wild animals doing things, and then explain why they do what they do. Most times, it is not for the reasons one expects.
Steve