Here are a few other responses.

“Earplugs are the most effective strategy. I use the silicone style that mold to your ear, available at most drugstores. The sensation may take some getting used to.”

— Kevin Ernest Hawes, 32, East Harlem

“When it got to be midnight, I put on some clothes and the toughest face I could muster and marched over there to give whomever an earful. I explained that I have to be up for work at 5 a.m., and asked them to stop. He said they were almost done, so can they finish?”

— Caroline Snell, 27, Bushwick, Brooklyn

“I design huge posters I then have printed professionally ($4) shaming her. I attach them to my first floor door, which all her visitors have to pass in order to get to her apartment. I change them monthly, making sure they get more and more lethal. Nothing I write is not without complete and total merit.”

— BJ Graser, 57, Bergen County, N.J.

“I had a really crazy neighbor upstairs and for two years I slept at my parents’ house. I ended up paying to soundproof my bedroom ceiling and party wall. It cost $8,000.”

— Sharon Ulman, 66, Forest Hills, Queens

“Awoken one night by the sound of my next door neighbors having sex, I resolved to confront them — this had been going on for a month. I wrote a note, including the line, ‘We can hear you doing it down by the front door. Maybe you shouldn’t yell so much.’ But then, worried about retribution, I added this introduction: ‘We’re not sure if it’s you or your neighbor...’ I printed two copies of the note, putting one on their doormat and one on mine. When my neighbors came home, a few seconds after hearing their door shut, I heard one of them yell, quite loudly, ‘Oh my god!’ I never heard a sound from them again.”

— David Kogler, 37, Yorkville, Manhattan