TANCREDI: I can see that you are a dangerously clever man, Doctor. I think it's time we conducted this conversation somewhat more formally.

DOCTOR: Oh, thank you.

TANCREDI: Hold him here while I collect the instruments of torture. If he wags his tongue, confiscate it.

DOCTOR: How can I talk if you confiscate my...

TANCREDI: You can write, can't you?