"Wensleydale," the Doctor repeated, enunciating each of the syllables (and, frankly, being a bit silly). "Your parents were Aardman, were they? Do you mind if I just call you Cheese? Wensleydale's a bit of a mouthful."

He sighed and stood up, dusting off his trousers as he did so. "Thank you for your help, Cheese. Could you put the word out that if anyone finds a key lying around to tell me? Thanks, you're a star."