Of course the Doctor loves chocolate. Chocolate is brilliant - possibly on his top ten list of human inventions, right up there with zippers and pogo sticks. He really needs to introduce zippers to Gallifrey once he finds it again, he decides; it would revolutionise Gallifreyan formalwear. (Though he's not sure much would improve those bloody robes.)

"I've got money!" he protests, patting his pockets. "Loads of money. In here somewhere..." Well, okay, maybe not. "Do you think they take Selian credits? I swear I've got a credit chip with loads of them in my pocket." The Doctor's never been very good at carrying money - even his pockets couldn't hold every currency he'd need for any given planet and time period, and so he simply doesn't make a habit of having it with him.