BELLINGHAM, Wash. – Margie Scott was devastated when her 9-year-old cat Sammy was diagnosed with kidney failure, but she never could have predicted what would give her comfort during her pet’s last days. Scott, who lives in an apartment just south of Lake Whatcom, had adopted the long-haired white and gray cat when he was just six months old. Last month, Sammy stopped eating his dry food and would sit in a corner for hours. Scott took him to the vet, who treated him for dehydration. But it wasn’t enough. “He was better for awhile, but then he started going...