I have dog since more than 5 years now. I don't know much about of there habits but what I know is dogs are like children of the home. They don't like professionals, professionals are like tutors, which children also don't like because tutor doesn't make you feel homely its more like behaving formally which people prefer less over informal, fun person. just like that dogs require family so that they can be themselves which love them not professional which train them. I simply love playing with dogs and taking them on long walks since I was a kid I doesn't feel like I am doing job. when I am with dogs I feel like all my tension has released. Dogs are very simple you just need to love them, thats it.