Sunrise 6:32: Mystery Golden retriever

Every couple of months the female Dawn Jogger encounters a Golden retriever tied up (on a very long leash) in the front yard of Menlo Park home. It's a bit of a mystery - why the front yard and not the back? There's always a large bowl of water and food bowl as well as a number of toys - a couple of stuffed ducks this morning. Usually the Lab is on the lawn but this morning he was sound asleep on the sidewalk, looking up as she passed and took his picture. Maybe he's just a visitor and can't share space with whatever lives in the backyard...