it's wrong to do something that ruins others good time.
Eric and his roommate Hank are spending time relaxing at home after a long week of school.
Eric wants to vibe to some EDM music.
Eric grabs his headphones and sits down in the room keeping the music a reasonable volume.
Eric turns on the stereo in their shared living space while Hank is reading a book and cranks up the volume.
Eric and Hank are both enjoying themselves and a bit later Hank orders dinner for the both of them.
Hank gets annoyed at Eric, gets up and turns off the stereo while yelling at Eric for being so inconsiderate.