When I saw a tiny Shih Tzu, named Tommy, for sale on a Facebook dog rescue page, I couldn't believe my good fortune. He was exactly what I had been searching for; the right size and breed—it was just a bonus that he was one of the cutest dogs I have ever seen. The administrator of the site said Tommy was full-grown and weighed only six pounds. Perfect. I wanted a smaller dog. He would make the ideal companion for my wonderful micro-dog Piki, who weighs just three and a half pounds. Paulette Cooper is a Kentucky-based author. She was...