The Mad Man and Molly
The first time Molly saw the mad man, he was dressed in tweed, with funny hair and a bowtie. She really did think that he was just one of the doctors at the hospital, or a visiting professor. Up until, that is, he came up to her gravely, and spoke.
"He really does need you, Molly. Just remember that."
Molly had stared at him, and that was when she had started to call him the Mad Man in her head.
"What do you mean? Who? Who needs me?"
The man gave her a strange look, and then another, stranger one, at their surroundings. He started to mutter incomprehensible things, which didn't make any sense to her.
"Wrong Molly? No... wrong- AH. Sorry. Wrong time. Dreadfully sorry, mix-up." He started to back away with an odd smile on his face, as though he had said something wrong and was trying to pretend that he hadn't. He gave her a small wave as he left. "Be seeing you, Molly Hooper!"
She couldn't help but wonder why he sounded so cheerful at the end there, when he'd sounded so sober to begin with. Maybe it was something to do with being mad, she supposed.
That was the day, however, the first day, when she met Sherlock Holmes.
...
AN: I don't think there are any spoilers so far. Although the Doctor has come from a spoilery bit, he isn't letting that much on…