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: There's Good Boos Tonight
Narm: The scene where Casper breaks down over Ferdie's death would have been even more effective, if the writers had just left out the "only friend I ever had in my whole life" Stealth Pun!
Well, what does one call a ghost's "existence span"?