It is rude to be loud and disturb the neighbors.
Alice is having a party at her house and has a few friends over.
Alice wants to play some music.
Alice turns on the stereo at a low volume that can't be heard outside of the room.
Alice turns the stereo on as loud as it will play.
Alice and her friends enjoy themselves, while the neighbors are able to sleep in peace.
The neighbors call the cops who give Alice a warning about being a nuisance.