Own nothing, merely playing with Naruto. Mentions of rape and capital punishment. I also don't claim to be an expert in neurology, but some of this I have seen, drastic personality changes due to head injury.
Head injury's are funny things. If you suffer one that's bad enough, it can kill. Middle of the range one's can give you any range of a concussion. But if you're really unlucky, they can change your behaviour. Guess what happened to me.
For over two hundred years I backed my brother, and never once flinched. His most loyal, if not his best soldier. Now, now I'm just a burden to him. I mean, what use has the Master of the City got for a haemophobic vampire? I mean, please?
Kyuubi stomped down the corridor, thoroughly disgusted with the that his latest meeting had gone, when he came up to his brother's room.
"Naruto! You in there?" Kyuubi shouted, as he pounded on the door, then narrowed his eyes as a thin faced blond opened the door.
"What do you want now, brother?" Naruto asked listlessly, as he turned back into his room, Kyuubi following him, automatically closing the door. What he had to say to him, no one else was to hear.
"When is this going to end, little brother?" the red head asked. "Others are starting to notice now. You're hardly leaving your room, loosing weight. You smell sick. We don't get sick," Kyuubi hissed at Naruto. "What's. Going. On?"
Naruto looked at Kyuubi, and just said "head injury," and left it at that.
"A fucking head injury wouldn't make you like this!" Kyuubi shouted, having reached the end of his rope, and sent Naruto's chest of drawers flying, clothes ending up everywhere.
Naruto merely ignored the clothes and walked over to the window. "It is a head injury. Or at least the result of a head injury," he insisted quietly. He turned round to face his brother, face serious, "remember when we were brats, there was that farmers brat, he was full of himself -"
Kyuubi snorted with laughter, "there were a lot of them. What's so special about this one?"
"He got hit on the head," Naruto said quietly. "I almost forgot about it, but I remembered that he was hung as a rapist eventually. He went funny after he banged his head."
"Are you telling me that you're going to become -" started Kyuubi.
"No," interrupted Naruto impatiently, almost sounding normal. "What it's done can almost be considered worse for a vampire than that. I'm haemophobic now, brother."
Kyuubi just gaped at him, unable to believe what he'd just heard. "You're fucking joking," he said, all the wind taken out of his sails.
"I only wish I was," Naruto sighed as he plonked his arse down on the bed. "Why do you think I've been holed up in here for weeks? I've been trying to overcome," and his shoulders slumped here. "Obviously, I've failed."
"Right," Kyuubi said, looking shocked as he turned towards the door. "I'll be back later," and he shot out of the room.
"Bye brother!" Naruto called out mockingly, not expecting to see him again any time soon.
It took about a week for Kyuubi to get back to Naruto, and in that time the blond had only got thinner.
"Naruto! Get your arse in gear!" Kyuubi shouted as he kicked Naruto's door open. "You're leaving this sty today. Got you an appointment," he said with a maniacal grin on his face as he grabbed Naruto by the front of his t-shirt and dragged him towards the bathroom.
"An appointment for what?" Naruto asked as he struggled in Kyuubi's grip.
"A psychologist," Kyuubi grinned. "We'll get you over this yet," and he shoved Naruto fully clothed into the running shower, busting a gut at the cry of outrage at the cold water.