PERI: I think you fainted.

DOCTOR: I never faint. I remember now. I felt a weakness. I felt a weakness and then I, I was in another place.

PERI: Can I get you anything? Celery! That's what you need.

DOCTOR: Celery, yes. And the tensile strength of jelly babies! But I, I had a clarinet. Or was it a flute? Something you blew into.

PERI: A glass of water?

DOCTOR: Water? No, don't think so. A recorder! That's what it was. Some kind of mind lock.