The girl looked up at him hopefully, all smiles. She was a tiny little thing, scrawny, about twelve years old. Her beady little green eyes stared at his face, unblinking. She was waiting for him to answer her, but he couldn't think of what to say. It wasn't everyday he was asked to do something like this…
"Sorry," said the Doctor, his facial expression one of confusion, like maybe he hadn't heard her correctly. "You want me to do what?
"Write a doctor's note," the girl said, still smiling, still hopeful.
"Why?"
"Because," the girl said, "it'll get me out of gym class, a doctor's note will. And you're a doctor, aren't you? Not just any doctor, either, but the Doctor! So will you write me one?"
"I'm not really sure I should," the Doctor responded awkwardly. Nine hundred and three years old, traveled through galaxies in all sorts of times, and he couldn't think of a single conversation as strange as this one he was having right now.
Her face crumpled in misery, but the Doctor continued, "Why do you even want to get out of gym class, anyway?"
The girl's eyes grew wide, as if she were frightened. "You have no idea what it's like in there," she said in a dramatically loud stage whisper. "The gym teachers, they're evil. They make us…run." She shuddered.
"Run," the Doctor repeated, slightly annoyed at the pointlessness of the way this whole thing was going. His tone took on that of mockery. "Oh my god, they make you run! How dare they do such a thing?" His voice returned to normal and he said, "It's really something terrible, exercise, isn't it?"
His sarcasm seemed to go right over the twelve year old's head. "I know," she agreed enthusiastically. "So you'll write me a note to get out of it, then?"
The Doctor made a face of obviously fake regret. "Sorry," he said sympathetically. "I just can't. I'm way too busy. Lives to save, worlds to rescue, and all that day's work stuff. No time for a doctor's note."
"No time?" the girl repeated, flabbergasted. "You're a bloody Time Lord!"
His eyes widened in fake surprise. "Am I?" he exclaimed. "Well, if that's the case, then I'm afraid I really can't write that note. You see, only doctors, not Time Lords, can do that." He smiled at her open mouthed expression, winked, and walked away.