 Why do pet owners need to know about rodent-filled cities as well as roach motel cities? You know, I'm thinking about parts in old L.A. where you have those, you know, those little motels that used to be really hip in the 60s, you know, full of hippies, full of drugs, people having love-ins. In the case of rodent cities, that suggests that there's trash all over the place and the houses are maintained. And that's not good for your dog either because many times,