More: We got Sadie as a puppy when her golden retriever mother went next door to "visit" the 17 year old border collie. She truly is the best of both breeds, gentle, loving and playful, as well as intelligent, protective and devoted. At almost 13, she is still very active and playful, loves the outdoors, going on walks and cuddling on her beds throughout our home. She truly is the: Best . Dog . Ever! And I tell her every single day.