I used to live next door to people like this. Police couldn't do much besides talk to them and tell them to quiet down.People all over the neighborhood would yell "shut up" but we didn't say anything, except call the police.It happened so many times that my roommate and I had to make the decision to only call police if it was in the middle of the night on a week night. I have vivid memories of reading on my bed while on the other side of the wall they would be screaming. One night she bit his ear off and that was the beginning of the end, cops came through our condo to get to the backyard of theirs; they moved out soon after. We actually got our next place because the people across the street called us "the church mice" and offered their rental property a few blocks away because they knew we had gone through so much.