My hypothesis
Sherlock walked out of the autopsy room at Scotland Yard practically glowing after his recent victory against John. £20 not bad for simply stating what he thought was as obvious.
Lestrade simply stared at him as he walked of down the corridor. He knew that something had gone on between Sherlock and his colleague since he had not accompanied him like he usually did. A lovers tiff as the boys down the station had joked, much to the doctor's dismay. And judging by Sherlock's... unsherlock like disposition, it was apparent who had come out on top. Which of course was to be expected and... by George did that man nearly have a spring in his step?
"Weird" Lestrade muttered as he walked in the opposite direction, putting as much distance between him and the new happy Sherlock as possible.
Sherlock on the other hand was finding that his good mood was fading fast, the glow from the lack of boredom was becoming... well boring itself. He needed to find something else to do and fast. Without looking where he has going he turned a corner and smacked straight into a slim, woman who was carrying a book. The force was more than enough to knock the woman onto the floor, but Sherlock already in his pace barely noticed what happened. In fact he was as absent minded as he could possibly be.
The woman got her feet and dusted herself down. She flushed red with anger and glared at the man who was walking away as if nothing had happened.
"Excuse me an apology would have been nice! Couldn't you have looked where you were going! " she retorted loudly.
Sherlock span on the spot and faced her. She appeared to be getting redder by the second.
Perfect. He thought to himself.
"I could say the same to you" he said picking up the book that had fallen from her grasp. He sneaked a glance at the title. She snatched the book of him and crossed her arms over her chest.
"Well ok fair enough. But at least the decent thing would have to at least acknowledge me when I'm pretty sure you were the one that put most energy into the collision, since I was the one who ended up on the floor. Which in fact... adds to my hypothesis that you walked into me?" She said her voiced laced with sarcasm but high with anger.
Sherlock smirked.
"Not what you expected then? Your new job? From my experience which I have a lot off you seem to have the demeanour and sickly pale sheen of a new recruit going to a crime scene, which led you to dig out the old romance novel to take your mind of it. However, add on the fact that you have your hair tied back, you have reading glasses in your pocket which corresponds with your book and you casually used scientific principles in conversation, and I'm going to have to guess at Medical Examiner. Or a scientist... at the very least. " he said smugly as the girl stopped talking.
She uncrossed her arms and walked towards him.
"Not at all possible then... that I'm just not feeling well? And my sickly, pale sheen is from the flu that I contracted yesterday. And as for this book" she said chucking it down on the table next to her. "I was quite frankly bored stiff and wanted to take my mind of feeling plain ill... not a crime scene as you seemed so confident about" . Sherlock huffed under his breath.
"Well you haven't just returned from a crime scene. You're probably just returning from autopsy or the lab. " he said correcting himself. The girl shook her head.
"Well for one autopsy is that way, where you've probably just come from judging from the slight frost on the collar of your coat. And I really don't work here" She added sarcastically. Sherlock absentmindedly touched his coat collar.
He was completely stumped. He'd never been able to not get a read on someone before. The smirk transferred from his face to hers.
"Well it's safe to say sir... you've made this, interesting to say the least." She said taking the glasses from her pocket. She looked at them intently before looking back at Sherlock with one eyebrow raised. She pocketed them again.
"And as for hair up, glasses down equals some kind of scientist... at least." She said imitating Sherlock's drawling voice. "Well you shouldn't read people on just what you see... because these are my brothers. He left them at my house... I'm returning them to his on the way back home. And I just like my hair up... Simple as" She laughed, at the shocked expression on Sherlock's face before shaking her head and disappearing down the corridor.