He has also called him protector, helper, lifesaver, and provider. Dogs are an incredible friend to man because they have been there through the years, through any task and any challenge, but the relationship between dog and man goes a bit deeper (and older).e take pride in our dogs, and sometimes show them off to others as we would our children. We play with them, hold them close, and rely on them for any number of reasons. The reason that we call dogs “man’s best friend” is a simple one.