I am just curious, really, because there have been a few threads about this recently. At what point would you knock on someone's door to ask them to keep it down?
For example, last Xmas our NDNs had a set of professional speakers, like the type you'd get in a pub to do karaoke with, placed up against our bedroom wall, and were doing mass singing with till 12.30am. We had elderly guests who couldn't sleep.
Or, last night (school night), our neighbours 4 doors down had their teens in their back garden screaming, and I mean screaming, at the top of their lungs, such that even with all the windows closed curtains drawn you could hear them. Went on well past 1am. DP had to get up for work at 6.
Obviously this is not like blaring dance music till 4, but in those sort of situations, do you complain? Or is it anything for a quiet life and neighbour harmony?