Have you ever wondered what a guide dog does? How do they know to lead a blind owner? Can they understand traffic lights? Most importantly, how does the owner know where to pick up the poop? This memoir answers these questions--and more. It tells what guide dogs are supposed to do. They're smart, loyal and well-trained--but not all dogs are created alike. Musket is proof of that. He's definitely got a thing for treats and belly rubs. For the first time, the dog has his say. Mark and Musket tell their story with humor, emotion, and Musket's occasional contradictions. And at the end of the day, Musket somehow manages to be a great guide dog too. was written so a wonderful, devoted dog could reach out to those who haven't been lucky enough to meet him. He'll make you smile, laugh, cry, and want to give him treats. This is their story.