Spent 11 years next door to them putting up with their wild parties and loud sex even when we had two young kids in the house, we'd make the best of the situation and we were never confrontational about anything sometimes we would have to say "could you lower the music please?" especially in the early hours of the morning, which 6/10 they would keep it down but sometimes didn't. This wasn't every night though, I can't exaggerate.
Anyway, they then hit their forties and decide to have a baby and then become very confrontational about the noise of our two dogs (which aren't loud) and had the cheek to be very aggressive to one of our household.
Turns out, the woman who turned on us for no reason was going through post natal depression and has apologized and since eased up. I accepted her apology due to the situation and I just want an easy life, that being said I haven't forgot how miserable she made our household and the worry she put us through about what madness she'd start saying next.