OK... this thread was something I came up with the idea for just yesterday.
Take a classic piece of literature. (Or any piece, really)
Replace one character with a Touhou or just have one show up midway through.
According to said character's personality, how does the story fall apart?
Edit: Some of these MIGHT qualify as fanfics, i just realized... Should I move it to Patchy's Library?
Here's an example.
Original: Jack and Jill
Interference by: Nitori
Jack and Jill went up the hill to fetch a pail of water.
They thought they heard "Gah, humans!"
They shrugged it off.
They reached the well and went to dip a pail into it.
Then the water flowed over them and encased them, and rolled back down the hill in a ball.
They hit a tree, bang their heads together, and lie there with a concussion.
Then Nitori chucks a couple of bottles of water at them. Slightly misjudging the strength of her Extending Arm and their location, though, she winds up breaking both their noses with them.
Another:
Original: Eclipse (Let's face it, who here wants Twilight to fall apart somewhere along the line?)
Interference: Keine for the Biology teacher
Remember the part where the two of them are in Biology and the teacher catches them writing notes to one another? ("Excuse me, Mr. Cullen, did you have something to share with the class?") And Edward shrugs it off with a blase "my notes?", producing a transcription of the lecture? This is if Keine was substituting that day... After all, unlike a normal person, she'd SEE the part where Edward swaps the conversation notes for the lecture ones, given that she enjoys teaching and doesn't put up with nonsense.
That part:
Keine: "Excuse me, did you have something to share with us?"
Edward: "My notes?"
Keine (to self) "He moved fast, but I saw him swap those. He's not normal, that's for sure... Youkai in disguise, maybe?"
Keine: "Mr. Cullen, could I see you after class?"
Edward (Having read her mind and realizing that she was no ordinary teacher AND knew something was up): "I don't see why not. "
Bella (Whispering to Edward): "Huh? What..."
Edward (whispering to her): "Shh. We don't want to cause trouble."
After class:
Keine locks the door.
Edward: "OK. I'll ask first. Who are you?"
Keine: "My, how rude. Normally, the teacher does all the talking, but I think it's clear to BOTH of us that neither of us is normal. And I was watching you. The second I saw you swap those, your face suddenly became very annoyed. You can hide it from her, but not from me. What are you really?"
Edward: "I have no need to hide it from her. She knows already. "
Keine: "A non-answer. Typical. I have my ways of finding out information. You're obviously not human. I'm not, either. And you very obviously know that, or you wouldn't be having this conversation in the first place. Why are you with that girl? What's your aim?"
Edward: "I love her. I have no aim."
Keine: "I can change that... If you truly believe you have been inevitably altered by that love, I might have no choice. A youkai masquerading as a human? How bizarre. And how impossible to keep going."
Edward: "Is youkai really your word for vampire? It doesn't seem right."
Keine: "So you're a vampire. I've got to say, you're easier to get along with than the Scarlets. And no. Youkai is a blanket term that describes any supernatural creature. Kappa, tengu, demons, angels, vampires, they all fit under it."
Edward: "How could you possibly change my love? I'll die before I let you try that!"
Keine: "I have the power to erase history, Mr. Cullen. Or rather, everyone's memory of it. I can easily erase the history of this love affair from Bella's mind.
Edward: "You what? That's ridiculous. No one has that kind of power."
Keine: "I know a way for us to settle this... on a battlefield. I'm trying to save us all. Why would you expose youkai to humans?"
Edward: "Excuse me. All i knew about were us and the werewolves."
Keine: "Werewolves? Those are my kin of sorts. We'll battle on a full moon. I win, you disappear from Bella's mind."
Edward: "And if you lose, I get to continue with this. Damnit, I know what I'm doing!"
Keine: "So be it."
Full Moon:
Keine: "No regrets, I hope?"
Edward: "If I die, my family will hunt you down. And what the heck happened to you?"
Keine: "Erasing history. I'll just erase yours. And I'm a were-hakutaku. I create history in this form. Originally, I WAS going to make Bella think you were talking with your rival Jacob. But she has a mysterious resistance to my power, so I had to take more... drastic action."
Edward: "Out with it! What did you do to her?"
Keine: "Oh me, oh my. Such a temper. I did nothing at all. That is, unless making her watch this fight and taking her back home with me if you lose counts as 'doing something to her.' Does it?"
Edward: "WHERE IS SHE?!"
Keine: "Over there." *points to Bella, who's tied up nearby.*
Edward: "DIE!"
Keine successfully defeats Edward because A: He can't fly, B: He only knows melee combat, and she has DANMAKU. and C: He's consistently looking at Bella.
Keine: "It's been fun, but really, goodbye."
Edward: "No, don't..."
A gap opens in space. Keine takes Bella and flies into it.
The gap closes.
Keine takes Bella to meet Yukari. Soon afterwards, after trying to manipulate 50 different borders in relation to Bella (and having her "no mental manipulation" shield thing block all of them, including when Ran and Chen decide to try danmaku persuasion [we're using the "danmaku is mental only" theory]) they throw her into the Bamboo Forest of the Lost.
Keine: "Originally, I'd planned to wipe your mind of us and youkai in general and send you back home, but it seems that, for better or worse, you're almost completely immune to our power. Others, however, are not. As far as the outside world is concerned, you never existed. Even Edward no longer remembers you.
Bella: "WHY? Why would you do this? Where the hell am I, and what do you mean he no longer remembers me?!"
Keine: *smacks forehead*
Keine (to self): "I KNEW we should have printed an information packet..."
Keine explains Gensokyo and her power.
Bella: "So... I'm going to be stuck here forever?"
Keine: "Yes. I didn't want it this way..."
END.