"Doctor! We've got a problem!"
"Is it any more important than a legion of Daleks armed with one of the most deadly weapons time has ever seen?"
"Yes."
"Right then, coming."
The Doctor turned away from the Daleks ("EXTERMINATE!") and walked back into the TARDIS. The TARDIS began to groan and then disappeared into space and time.
"Yeah, Rose?"
"You've got a call." she said holding out her cell phone.
"I've got a call?" said a bewildered, and slightly amused, Doctor. "Who could be calling me? No one ever calls me. It's kind of nice to be called, isn't it?"
"Hey!" Rose shook her phone, "You going to answer it or not?"
"All right, then." He took the phone from her hand a put it to his ear. "Hello, this is the Doctor speaking, and yes, I do house calls. Yes. Uh-huh. Amy? Amy who? You're with the Doctor? No, I'm the Doctor. Rose!" he turned to his companion, "Aren't I the Doctor?"
"Yes…"
"See? I am the Doctor; Rose said so. The future? No, nope, no can do. No crossing my own time line; rule number one. Goodbye."
The TARDIS landed and the Doctor stepped out, ready for his next adventure.
"And by the way," The Doctor had seen planets destroyed before him, species eradicated in the blink of an eye, but never before had he seen a stranger sight then he had at the moment. He saw a young girl with flaming red hair, a rounded face, and, the Doctor just happened to notice, an extremely short black skirt. And worst of all, behind her was a big blue police box. "Rule number one is that the Doctor lies."
Author's Note: Short intro to the beginning of a (hopefully) longer fanfic.