Think of the kittens! :p
Funny side note: couple of nights ago, just revellers were passing by my block of flats and basically, one of the women was full-on singing Let it Go and knocking it out of the park.
Its kinda hard to tell them to STFU when its actually a damned fine performance.
Guy on the floor below didn't feel the same way though and started bellowing for her to shut up, far, far louder than the woman had been singing... that made me laugh.