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 / Squick: The scene in Hatchet where Brian swims into the sunken plane to retrieve its cache of emergency gear and sees the plane's dead pilot... after months of rotting in the water. He then throws up into the water all around himself.
What an Idiot: Probably the response of many readers after Brian kicked that bear, expecting it to walk away sheepishly.