IMO, it's really not worth the hassle of acting childish and getting a louder roo or barking dogs or being otherwise vindictive. I have several roos, and I KNOW that they can be loud and annoying. I don't have any close neighbors though, so they don't bother anyone but me. I have heard them crow at all hours of the day AND night (like 1AM). IMO, it'd be neighborly to rehome the roo(s) and get a few more hens. After all, if you had a neighbor with an annoying dog who barked at all hours of the day, and you asked them to do something about it, you wouldn't want them to get MORE dogs, would you?