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 In The Hat Knows A Lot About That
Ear Worm: The opening theme song and "Here we go, go, go, go, on an adventure/the thingamajgger is up and away!..."
Paranoia Fuel: Okay, so obviously nothing bad's going to happen, but when the Cat says "Isn't this fun?!?" he sounds kind of psychotic.