Angel Bob: Sorry, can I ask again? You mentioned a mistake we\'ve made.
The Doctor: A big big mistake. Really huge. Didn\'t anyone ever tell you?
There\'s one thing you never put in a trap—
if you\'re smart, if you value your continued existence, if you have any plans about seeing tomorrow—
there\'s one thing you never ever put in a trap.
Angel Bob: And what would that be, sir?
The Doctor: Me.