We got a card in the mail the other day from the vet's office. It said it was time to schedule Zoe's "Senior Wellness Exam". What? I remember when she was all of six pounds, looking up at me with those dark brown eyes, begging me to take her home. Eyes that looked into my heart and soul, and mirrored her own. It seems like yesterday, almost. Certainly not the better part of a dog's lifetime ago. How can it be?