To paraphrase Robert Frost, "Whose dog is this we do not know, but we have promises to keep, and a home to find for Miles to sleep!" An eight-year-old German Shepherd mix, Miles ended up in the Sampson County Animal Shelter in North Carolina on August 8th. We're not sure how or why. However, we do know that Miles tested heartworm positive. As a larger and older dog, being heartworm positive only made it all the more difficult for him to find an adopter or rescue.