DOCTOR: Grace, let me in. We can sit down, we can have a cup of tea, we can talk about this reasonably.

GRACE: Sure, Time lord to Earthling.

DOCTOR: Yes, that's right. I am a Time Lord.

GRACE: I thought you were a doctor.

DOCTOR: I thought you were a doctor!

GRACE: I am calling an ambulance to take you back to Psychiatric from which you have obviously escaped!