I have lived with a Shetland Sheepdog, or Sheltie, since I was 14. That's a long time... They have brought me constant love, joy, and affection, mixed in with exasperation and ultimately heartache. The one problem with dogs is their inherently short lifespans. This week, after a very short course of Lymphoma, I made the difficult decision to let Molly go. She was diagnosed only 3 weeks ago and rapidly declined. Molly was 13 and had been very healthy up until about 2-3 weeks p