It isn't good practise for the Doctor to be left alone. He tires of most things easily, needs to be kept occupied. When he isn't, strange and reckless things tend to happen. Such as sleeping in the lobby to experiment with seeing if the castle can interfere with his dreams, waking the entire castle up just after midnight because he can, and getting it into his head this afternoon that the clinic needed to be reorganised and have its efficiency improved by 74.0556 percent.

Which finds him looking for Jennifer, as he is pretty sure she would have a set of keys to the medicine cases and cold storage. Making his way to her room and hoping she is there, he has knocked once already and is still standing in the hall.

"Jennifer? It's me. Do you have a minute?"