Personally, I think the pool should be limited to pictures where the characters that are going to get hurt are actually shown.
Sorry, but I don't want every single picture with an angry character coming at the screen to attack you in the pool.
"Usage when a character does something stupid with a lack of foresight and gets punished for it. Foreshadow of impending doom. Can be before or in process. Usually comedic"
And I think the creator of the pool agrees with me. =/