During the course of history, a subtle change has occurred in the relationship between man and dog. It used to be that dogs served as man’s slaves. They provided an economical form of labor that released man from certain chores such as guarding houses and properties. They also acted as man’s protectors throughout centuries. But how the roles have reversed now! The dog has become a pet-the fortunate and sheltered member of the family. Man now serves and protects his dogs.
More: continued here