Shannon Wells worked as a dog sitter in order to put herself through a respected school for dog trainers in St. Louis. She works with sporting dogs, working dogs, and dogs whose principal duties involve looking cute and not peeing indoors. Originally schooled in "forced based" methods, she eventually gravitated toward an approach that emphasizes positive reinforcement. Wells worked with one couple with a rescue dog whose aggressive behavior had tested a long line of trainers (one left with a bite). Wells got the dog to relax to the point that it was able to coexist with another dog that the couple volunteered to watch for a week. "More than training dogs," she says, "I like training people to have a good relationship with their dogs." One of Wells' specialties is training dog owners to help their canine adapt to the arrival of a new baby.