[Mickey has his finger on a button on the console.]
The Doctor: Um... What're you doing that for?
Mickey: 'Cause you told me to.
The Doctor: When was that?
Mickey: About half an hour ago.
The Doctor: Um. You can let go now.
Mickey: Well, how long's it been since I could've stopped?
The Doctor: Ten minutes? Twenty? ... Twenty-nine?
Mickey: You just forgot me!
The Doctor: No, no, no! I was just...I was just...I was calibrating. I was just...no, I know exactly what I'm doing.