"Well, that didn't work."
(Which reminds of one joke that was on the forums during the pre-release Harry Potter/Deathly Hallows mania:
Since everyone was sick to screaming death of "How will they end it?" threads, some fans tried a different approach: "What do you guess the last word of HP7 will be?"
That let some fans make guesses like "train", "Hogwarts", "scar", etc....My guess for the last word of the Harry vs. Voldemort book?: "...Oops." )