Coco, I absolutely have a comfort dog! I got Emma when she was five months old and trained her myself. She is nine now and is my constant companion. I traned her as a therapy dog, so that i could take her to the nursing home to visit my mom with me. It felt safer. Last year my therapist suggested I look into having her trained to be my service dog to help with my PTSD. We are truly bonded, and she is so smart, so it only took about four months working with a trainer to work on public access skills. Now I can take her anywhere the public is allowed except an operating room. She is a tremendous support and a real snuggle bunny.
If you really want a laugh, Google "Sad Cat Diary" and Sad Dog Diary".
Diane