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.
Nightmare Fuel: The closing credits. Everyone's relaxing and going along with their lives, and then suddenly there's a big freaking volcano which causes tremors and has everyone suddenly racing for their lives! Somehow after this it's back to usual antics, but after that a couple of mosquitoes fly into Cy's cabin and bite into his neck, sucking some blood while he happily slumbers. The very next scene shows a lone coffin in some deep cave somewhere...
To put that last part into context, that was from an episode where Cy was bitten by those mosquitoes and, waking up to see his bite marks, was convinced that he was now a vampire and the successor to Dracula. That coffin was where he was sleeping voluntarily. Still really creepy if you didn't see the episode, though.