The Doctor, the Widow, and the Wardrobe
[Prequel]
(On a spaceship, the Doctor is making a phone call to the Tardis.)
DOCTOR [OC]: Amy. Amy? Hello? Amy, it's me, the Doctor. Hello. Bit of a situation.
COMPUTER: Intruder alert.
DOCTOR: I've got my finger on a button, which is fine, but as soon as I take my finger off the button the spaceship is going to explode. (Sparks.)
DOCTOR: Argh. Which is good in one way, because the spaceship in question is about to attack the Earth, but bad in another way, because I'm on the spaceship and I'm going to get all smithereened. Now, plan. I'm going to send you the coordinates so you can fly the Tardis here and rescue me. Only three flaws in this plan as far as I can see. One, I don't have the coordinates. Two, you can't fly the Tardis. Three, oh dear, you're not even there. You left ages ago. Oh, well. I think I just wanted a chat before all the smithereens. Merry Christmas, Amelia.
(He closes his eyes and releases the red button. The spaceship starts to go KaBOOM!)