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.
Fridge Horror: The wording of Mr. White's last wish isn't stated. If it was something along the lines of "I wish my son back to the grave" rather than wishing he was dead again, knowing the Literal Genie, his son is not only still horribly mutilated, but possibly buried alive.
Mr. White only wished his son alive again; this does not necessarily mean he was ever out of the grave, since we don't know for certain what caused the knocks on the door.
Nightmare Fuel: Imagine seeing your son turning into zombie because of your wish.