Caregivers and those who serve others come in all shapes and sizes, but sometimes the person in need just wants a little attention from someone with a cold and wet nose, four paws and a furry body. That’s what Cheri Duffey, owner and handler of several therapy dogs, has found out. Duffey’s canine crew includes Tarrah, a border collie and Lab mix; Sunny, a Labrador retriever; and Gatlin, a Cavalier King Charles spaniel.