The Doctor picked up the sonic device and his coat suddenly. He was looking through the pockets as he said "Going in the TARDIS isn't teleportation. The inside's in a different dimension but that dimension's attached to the doors of my blue box. Aha!"
He took a couple of items from the coat, one being a predominantly yellow box of sweets and the other a pen. "Have a Jelly Baby?"
Before Kurt could answer, the Doctor suddenly pointed the screwdriver, making it whir. "Here's what the TARDIS looks like. I used to think she was stuck in that shape but it turns out she prefers it."
An image of the rotating police box appeared in the beam of light the device cast. The Doctor grinned.