The dog expert Martin Rütter decodes the secrets of communication between humans and dogs. Getting a dog: How do you find the right dog? Visiting the dog breeder: Which puppy should it be? Like owner, like dog: What and how do dogs learn from their owner? The dog and its owner: Who is who? Who plays the role of the alpha? He just wants to play! He won't do anything! How can you expose lazy excuses from dog owners?.