These words by Louis Armstrong are among the best statements ever made about the relationship between a human and his /her best friend. There are no other two species on this planet which during evolution have managed to interact with each other such as man and dog. At the same time, the dog is way ahead of human kind in many ways ~ the research on our dogs is not over by far. Sharing life with a dog does not only mean responsibility … it rather means a neverending amount of love, fun and trust without any words – and the perception that there is somebody who know us better than we know ourselves: Our dog!