Say...you said you'd not had the CAT with ye before. Funny that ye do now and all of a sudden ye can remember things, don't ye think? Maybe they can do more than allowing ye to talk, or keeping track of people.

I mean, I'd not had my memories of the Doctor when I first came to town. Or, well, most of them, apart from that first time. What if it had a hand in unlocking them somehow?