Some things are just not meant to be seen or experienced. These poor souls will have to go through the rest of their lives with their shattered mentality. Examples include young children seeing things they are too young to know at their age, and extremely embarrassing situations/misunderstandings that the character may NEVER live down.

Note: Do not confuse this pool with others such as "Nightmare Fuel." This pool is about characters witnessing and/or experiencing something that will haunt them to the very end, whether humorous or not.