Lord Voldemort was not having a good day. Every time he'd start planning one of his evil evil plots or Diabolical Plans™, he'd get this funny feeling. It wasn't rage. It wasn't hatred. It wasn't either of his normal emotions.
He didn't know what to do.
So he did what he normally did when he didn't know what to do. He cursed Lucius Malfoy senseless.
He was just putting the finishing touches on his finest Crucio ever when his nemesis walked in. No, not Dumbledore you morons. Harry Potter.
"Potter!" Voldemort vocalized vivaciously. "You have come to surrender!" The knave nodded knowingly. "Or perhaps to die?"
"No Tom. I have come to give you a chance. I did some research into previous Dark Lords and have come to a solution to our little problem. One little spell that can change everything." Harry stared right into Voldemort's eyes. "And I can do it now. Ejaculus!"
Voldemort fell to the ground, writhing in what appeared to be agony. He thrashed, he screamed, he arched his back. During the convulsions and apparent death throes, his nemesis walked out. No, not Dumbledore you morons. Harry Potter.
When Voldemort came to his senses, he realized that things must now change. From now on, he was Tom Riddle.
Miles away, at the Burrow
"Thanks for the spell, Ron. I didn't know it would be that simple."
"No problem. Just don't let Mum know. I shouldn't be teaching others the family spells."
"I see. Now to get back to shagging Luna senseless."
AN: Just a plot bunny that wouldn't leave me alone after reading Dark Lord Prevention Tech by Clell65619