It's ok Alice, the Doctor =/= doctor thing is rather confusing to be honest. Even Ches doesn't really understand why there are so many doctors and how they differ. Although it probably doesn't help that he never actually asked.

He angles his head to nuzzle into Ten's petting hands, eyes sliding shut as a low purr of contentment rumbles from his chest. All the while that fluffy tail is busy reaching into the adjacent space to fish out a truly gigantic feather. Seriously, it's almost as tall as Alice!