Dogs Yipping

I don't know if it has to do with China's one child policy, but there seem to be an excessive amount of small dogs in my apartment complex. And in the morning and evening you hear a preponderance of dogs yipping. Sometimes it's ferocious, especially in the morning. Two small dogs seem to have it out. Othertimes it's annoying, especially in the evening. Yip, Yip, Yip! So you can't have a kid, but you can have a dog to make up for it. Is there a connection here or is it just my imagination? One of my Chinese companions said it's a problem because many people do not have their dog's innoculated against distemper and rabies. Oh boy! Hopefully they're not ferocious enough to bite me. But I also say "BITE ME!"