More: Millie brings joy to our lives. She loves taking car rides, going for walks and getting into mud. She is now a senior dog at age 11, but that doesn't slow her down. She attends weekly playdates and is an amazing big sister to her 3 year old dog sister. Millie's favorite thing to do is run off leash. She doesn't get to do this often but when she does, she is one super happy dog!