I was on the train and got stuck next to some people who insisted on listening to music and videos loudly on their phone speaker.
If it's ok for other people to listen to their music loudly on a train, that must mean it's ok for me to do it too. I slapped this album on and within 5 minutes they'd stopped playing their music.
I can only assume that they were so impressed by the sound of water dripping in an empty sink that they stopped their noise to better hear it.