Marking scheme for a TA.

The First Day: Before Class

"Random drug testing." John eyed the jumpy young man as it finally dawned on him.
"Just you, of course, not the class. Since we'll be working together, I need to know I can count on you. That means no illegal activities, especially ones that can and will inhibit your abilities to function." he stood up and walked into his private office. "There's a drug testing station down in the nurses office. Go take care of it right now."
Sherlock almost froze, just a few moments before he caught up to the others accusations.
"Fine. However on that note I'd like a recent mental evaluation, only from you. Since we'll be working together i need to make sure that it is safe. Especially if it could inhibit your abilities to function " he said as he stood.
" or would you prefer the honor system, granted it'd have to be mutual of course " the brunette offered, voice slightly touched with surreptitious intent.

John sat back in his chair after grabbing a few books and papers from his office, looking at Sherlock and repressing an impressed smirk, he wasn't an idiot then. "How would I know to trust you? We've only just met." he nodded at the stack of papers on the corner of his desk.
"I don't allow any sort of drugs, Mr. Holmes. Nothing, not even cigarettes, are we understood?" he arched a brow. "Show up like this again and I'll personally walk you to the nurse station."
" five months clean, it's still in my system. This is all I own that suits the school dress code. I'll get something more appropriate after pay" Sherlock said and crossed his arms. " Regardless. If you have an issue with me, refer me to someone else." He said, getting instantly defensive. " and your fourth question is wrong in the wording" he said, just to get another shot at the other as he looked at the papers.
"No smoking. I can smell it on you." he glanced up at the young man again. "Your dress is fine, but disheveled. You could wear that every day and be fine as long as you cleaned yourself and the clothes and actually tucked your shirt in." he nodded at the untucked button down with a look of disapproval. "And it's not. The wording works best how I put it." he turned back to his laptop, flipping through slides. "The answer sheet is on top, mark them incorrect if they are and I'll show you my grading system once that's done."

" more than half the school population smokes, I doubt you have fair grounds to ban me from such activities as long as it's not done on academic properties " Sherlock protested , wording kept precise. " the wording is wrong regardless how you read it, and i don't need the answer sheet" he said as he took the papers and began to go through them.

John was going to go ahead and say that this child was the absolute worst to work with. Smart from birth and raised as a genius with all sorts of authority at his command had turned him into a brat, that much was obvious.
"Right. Let's try that again. Please do not come into my classroom smelling of cigarettes again. Please grade the papers how I asked you to as this is my classroom and not yours. Now, if you'll excuse me, I need a bit of quiet to think. If you need anything, I'll be in my office."

Already starting a small stack of completed papers, Sherlock shrugged. " I dont need ths answer sheet, I know the answers. Your question is worded poorly, not because it reads wrong but because it leaves the possibility of up to three answers and as your course only allows one proper answer on formal papers you could screw a student out of marks. Which is wrong" he said with ease. " Also, I can hardly help how I smell unless I wear some form of body spray which is prohibited in the medical wing... I'll make an effort to limit the smell though. "
Nodding and sighing a bit, John stood with his laptop in hand as well as book stacked on top of the closed lid of the device. "Very well. Take out the question entirely, I'll apologise to the class today and explain." he walked slowly and almost lazily back toward his office. None of the TA's assigned to him lasted long, and though this kid was different, he was sure in a week he'd hear from the headmaster how he needed to change something to make it easier to work with him. "Oh and call me John. I don't like being called Mr. Watson. Professor or Doctor works as well."

" I'll get a type out of each answer so you can rate the preferred answer. You can give bonus marks or leave it to class discussion to decide " he said as he made it half way through, the papers a fantastic mental relief from the usual onslaught. Resting his chin on his hand as he read and made notes he cleared his throat " ill set the finished papers on the desk and get you five minutes to class starting " he called towards the office.
Once he'd finished he took out a laptop from his bag and typed out the reasoning for the other questions, both comprehensive and in-depth, before putting everything on John's desk.
Messy desk.
New task.
Sherlock spent the remaining ten minutes organizing the others desk alphabetically for the files and by colour for any writing materials. After finishing, however, his twitch came back. Luckily there was only five minutes till class, til he had something else to occupy his scattering thoughts. " John, class is in five" he said as he knocked on the door.
"Yes, thank you. I'd like you to just sit through the first week, as I said, and then you can start helping with lectures." The blonde uttered absently as he finished editing a slide and standing up, taking his laptop with him. "Did you get through the papers?" he arched a brow at the young man, sliding past him and into the classroom, a dozen or so students already filling in.
"Oi! What's that freak doing here?" A loud voice, one John instantly recognized, yelled  making  him look up at his students until his eyes landed on the one who yelled,  Sebastian.