All are in the format of a statement, followed by an apparent comment on said statement. Here goes:

S. They’ll never learn how you exploited them.

• C. That’s a relief!

S. You’ll never see him again.

• C. That’s what you think, you stupid old hag. What we have together is eternal!

S. Enk is not to be trusted – follow to your ruin.

• C. Whi the [expletive] is Enk?!?

S. Rudeness has consequences.

• C. That’s profound.

S. Pedro’s melons and minnows.

• C. What? I think a certain oracle’s drunk.

S. Speak friend and enter.

• C. I’ll get right on that then.