Rule 1: The Doctor lies.

“The Doctor: [aiming gun at the ceiling] Didn't anyone ever tell you? There's on…”

“Angel Bob: Doctor? Excuse me, hello, Doctor? Angel Bob here, sir. The Doctor: A…”

“There's something that doesn't make sense. Let's go and poke it with a stick.”

“Well we've moved through the funfair a bit - we've done the rollercoaster, now …”