Keith was almost to the doorway when a sudden obstacle made itself apparent in the form of Amelia.
Keith cursed, his mind moving a thousand miles an hour. Of course he had heard that Amelia had been accepted into the Imperium squad, but he had never quite managed to make the connection between that and, well, Amelia. She was very firmly standing in his way, preventing him from escaping what was quickly devolving into World War Hogwarts, and Keith was pissed.
He skidded to a stop in front of the older girl as she made her deal. Keith knew the schitck. Give up quietly, without a fight, and she'll help him get out of this unscathed. At least physically. But Keith hadn't gotten where he was by making compromises.
He supposed he had only himself to blame. Keith lived by a system of honor unique to him and him alone, complete with so many exceptions, exceptions to the exceptions, and twisting patterns of rules that only someone who had lived under it every day of their life for 10 years could possibly understand it. Keith ran the situation up against his personal honor code and found that Amelia was within acceptable parameters.
In a nutshell, Amelia had anticipated Keith's course of action and had moved to stop it. There was no violation of the "Keith Code" in this, as she had simply outsmarted him. However, Keith still had a few moves left. And besides, rule #77 stated that if all other options had been exhausted, it was ok to break the Code. As long as you succeeded.
Keith narrowed his eyes. After months of living at Hogwarts, he had developed a system for fighting older kids. Unlike the Keith Code, it was straight forward, and had 3 rules.
1. Older Kids always underestimate you. Use that.
2. Older Kids always overestimate themselves. Use that.
3. Older Kids, wizards especially, are very set in their ways.
Keith's personal favorite was number 3. Older kids, especially ones that had gone to Hogwarts for any extended period of time, were usually very narrow minded. They lost the ability to see more than a handful of possible actions, and therefore lost the ability to develop a reaction or defense from an unorthodox attack. Summed up, people are thrown off guard by things they haven't seen before.
So instead of throwing an utterly predictable Hex Amelia's way, (which wouldn't work, she no doubt was prepared to cast protego at a moments notice) and engaging him in a duel of which he had no hope of winning, he did the unexpected.
He ran right at Amelia, reaching into his pocket as he did so. His hand closed tight around a knut and he whipped it out of his pocket, chucking it sidearm at Amelia before hitting a baseball slide, aiming for directly between her and the right side of the door.