Enough with the dog to be close to the feet of the master, to the level of happiness have not improved significantly. This is evidenced by data collected by American scientists. They got the scientific evidence natural the dog's devotion to man. The study says the publication Behavior Analysis.
In the experiment, the dog was locked without an owner in the room. The owner thus was outside the door. As soon as the door opened, the dog tried to be as close as possible to the person. Most of the dogs went with the legs.
Even if between the owner and the dog was an obstacle, still the dog sought his master. Most dogs given the choice between a man and toys chose people.