Haven't used it in donkey's years. It seemed like a good idea at the time. Well, never mind, it's bound to turn up somewhere. [The Doctor's sonic screwdriver is heard whirring in his pocket] Ooh. Ha! See? Right on cue. [He examines his screwdriver's readings] Brilliant.
[to Captain Zhukov, embarrassed] Could we have a lift? [Both Clara and Zhukov laugh as they head back into the submarine; the Doctor laughs sarcastically after them]