Manic-Depressive Community?

Ok, my sabbatical is over and I need to write again. This time the creative juices were (again) stirred by my neighbors. Could there be such a thing as a manic/depressive community? Although there are exceptions, I think the majority of the people around here live on extremes. They are either morose, alone or together, mumbling secretively in some 'hood dialect, or talking and laughing at an excessive decibel level, probably needed to carry over the sound of their car stereos and amplified bass boost.
My children's vocabulary has suffered by living here where conversations best left private are aired in a volume commonly associated with crowds at a football game. Even the most innocuous things like the "Happy Birthday" song seemed to get warped here. Two nights ago a backyard neighbor was screaming the words in something that in no way resembled "happy".

When we move from here, my ultimate dream would be to take a 6 month vacation to somewhere in England, (the "land of impeccable manners"), where I could immerse my family in a culture of well moderated voices, precise speech, simple courtesy and gain a fresh appreciation of the English language.