After all, in my busy life, I barely had enough time to walk my grand dog, Fiona, a gorgeous 70-pound Colorado Mountain Dog who moved in with me when my daughter did. The pup is a new breed, a careful mix of Great Pyrenees, Anatolian Shephard, and Maremma.  She does not need a lot of exercise. She was bred to guard livestock–regal, loyal, a gorgeous white baby with kind, black eyes. At four months old, she had lived in a corral in Colorado with cats and goats. When she arrived in a crate at John Wayne Airport, she had never been inside, terrified of every sound, never even having been…