Disclaimer: I am not J. K. Rowling, therefore I own only the plot in this fanfiction.

The Incident
Chapter 1

Hermione Granger was not what you'd call a normal girl. Firstly, she could do magic. Secondly, she was friends with wizards renowned for getting into trouble. Thirdly, this almost always ended up with Hermione getting involved out of the goodness of her heart (or in some cases, like this, she was involved involuntarily) because she couldn't bear to see her friends get hurt.

Now, this situation was unlike any others her friends had gotten her into – most likely because it was caused by her best friend's twin brothers who were the top troublemakers known to wizardkind. The 'incident', as Hermione liked to refer to it afterwards, happened on one bright, sunny day that seemed like the perfect day to relax outside and read a book, however, unfortunately Hermione had to go to work.

As Hermione had returned to Hogwarts after the war to finish her schooling, she was considered an 'eighth year', which gave her special privileges such as leaving the castle anytime she didn't have classes. So, to save up some money as she could no longer rely on her parents who were still living in Australia, she took on a part-time job at the Weasley's Wizard Wheezes.

The joke shop was run by the Weasley twins, the troublemakers mentioned above, but Hermione had a soft spot for them deep down. Which was why she had agreed to help them with their experiments every weekend.

This particular day, Hermione apparated to Diagon alley and entered the shop hesitantly, as if she could feel in her bones that something eventful was going to occur. She walked straight through the throng of customers to the back room, where all Fred and George's inventions were created.

"Hi Hermione," the twins greeted her in sync, overly cheerily, which made her more suspicious.

"Hi boys," she replied slowly, her eyes focused on the cauldron sitting in the middle of the room which had red, blue and yellow sparks jumping out of it. Without getting too close, Hermione leant over the cauldron to look at the potion which was surprisingly a brilliant purple colour. "What is this potion?"

Fred looked at George, and answered, "It is our newest-"

"-latest-"

"-brilliantest-"

"-amazingest-"

"-remarkablest-"

"-astoundingest-"

Hermione rolled her eyes at their antics, and winced at their terrible use of the English language.

"-marvellousest-"

"-potion yet," George finished, panting slightly.

"So… what does it do?" Hermione asked, smiling slightly, even though she'd never admit that she found them funny.

"It gives you and your worst enemy the same magnetic pole so that they are always repelled away from you," Fred informed her seriously.

"They can't get within 10 feet of you at any time," George said gleefully.

"How long does it last?"

Fred answered her. "Around two or three days, but we aren't entirely sure."

Hermione picked up the ingredient list and method they had created before brewing the potion and began reading it, while George scooped out a ladle of the potion and poured it into a small glass vial.

"It's actually a very good idea, and it seems like you've done a good job of making it."

"You seem surprised, Hermione!" Fred exclaimed.

"How could you, Hermione? You know we never fail to impress," George shook his head sadly, but Hermione could see him grinning.

Hermione chuckled and rolled her eyes, before double checking the ingredients list.

"Now to test it out!" George gave Fred the glass vial he was holding and filled another of his own.

Then, everything happened so quickly, Hermione was never quite sure of what occurred at that moment, but she was fairly sure of this:

While rechecking the ingredients list, she came across a very subtle clash in the properties of two of the ingredients. But, while it was subtle, she knew instantly that it would alter the whole effect of the potion. Hermione then yelled out a very loud, "NO!" and flung her arm across at the twins. As George dropped his vial in surprise, Hermione's hand hit the bottom of Fred's, sending it flying up into the air. The three of them watched in horror with their jaws dropped as the vial spun around in almost slow motion, causing small drops to rain down on Hermione's face. Somehow, in a ridiculous coincidence, one drop landed in Hermione's open mouth. There was a huge purple flash, and the next thing Fred and George knew, Hermione was being pulled by an invisible force out of the room, so quickly they couldn't do a thing to stop her. They ran out into the store, just as Hermione was flying feet first through the open door, her arms outstretched towards the twins, screaming, "YOU IDIOTS!"

Fred and George gulped audibly and looked at each other.

"She'd going to kill us, isn't she?"

Hundreds of miles away in the Slytherin eighth year male dorm room, Gregory Goyle, Blaise Zabini and Theodore Nott were woken up by a loud yell and opened their eyes to see Draco Malfoy clutching onto a bedpost. His body looked like some sort of strange flag on a flagpole, Goyle noted sleepily.

"What the fuck is going on?" Zabini frowned. "What are you doing Draco?"

"I'm just stretching out my legs," Draco panted sarcastically. Sweat was dripping down his face and he was trying his hardest to keep hold of the bedpost, even though his body was being pulled away from it. "DOES IT LOOK LIKE I'M FUCKING DOING THIS ZABINI?"

All of a sudden the bed started moving in the direction of the door as well as Draco. The force pulling him away from the other Slytherins was so strong, the bed wasn't heavy enough to keep him in the room.

"DON'T JUST STAND THERE! FUCKING HELP ME!"

Goyle was the first up. He grabbed hold of the opposite side of the bed pulling it in his direction. Then Nott and Zabini each grabbed one of the other two posts, attempting to hold the bed in place. However, the force was too strong for them and when the bed continued to move towards the door, they all let go, not wanting to be smashed into the wall. Luckily, they did it just in time. All of a sudden, a loud cracking noise filled the air and Draco went flying out, holding on only to a broken piece of wood as the bed crashed into the door frame, the curtains falling down onto the mattress due to the missing post.

The three boys looked bewildered but slightly bemused, and being the lazy teenage boys that they were, climbed back into their respective beds and fell back asleep.