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: Death on the Nile
Values Dissonance: Poirot tells Linnet that there's nothing the police can do about Jackie following her and Simon around all the time because, as long as she doesn't actually threaten them, she isn't doing anything illegal. Stalking and harassment laws obviously hadn't been invented yet.