These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Cat Piano
Fridge Horror: Durning the montage of cats being kidnapped we see that some of cats are in fact kittens. Yeah, there were kittens in the cat piano.
What Do You Mean, It's Not for Kids?: If the very first shot of dozens of snuffed cigarettes and empty booze bottles doesn't convince you, the fact that cats get kidnapped and put into a piano which drives nails into their tails to make them sing on cue will.