Sneaking Aboard the Durango & Silverton Narrow Guage Train

Pocket: Get down in there. Lower!
Denim: Why is this necessary, sir?
Pocket: We don't want to be discovered, Cadet!
Denim: Why? Master and Mistress usually take us with them on special outings.
Pocket: Not today. We're villains, remember?
Denim: Oh yeah, that's right!

Pocket: Surprise!
Denim: Reach for the skies, or we'll exterminate Exterminate EXTERMINATE YOU!
Pocket: Actually, we just want your money.
Denim: Yeah, we're hitting the concession car next!

Body By Davros

Denim: Sir, why do Humans get so excited about waterfalls?
Pocket: It reminds them of their mortality.
Denim: How so?
Pocket: The older they get, the more they're prone to fall.
 

Denim: I guess that's why Davros designed us with such wide bases?
Pocket: It's what Humans call Intelligent Design.

Sanitize And Sterilize

Denim: Sir, why is Colorado so green?
Pocket: Plant life is an infection, Cadet. Left alone, it festers.
Denim: So a healthy ecosystem is really planetary gangrene.
Pocket: Negative. Why do you think Humans build cities?
Denim: Because they want to live together?
Pocket: No, it's because they want to improve upon nature.
Denim: So a city builder is like a gardener.
Pocket: Exactly. A good steward removes, or exterminates, the undesired species--
Denim: Exterminate! Exterminate!
Pocket: --and plants and grooms only the species he wishes to grow.
Denim: Exterminate!! Exterminate!!
Pocket: Naturally, these include shops, apartment buildings, and factories.
Denim: Exterminate!!! Exterminate!!!
Pocket: You know, sometimes I forget how young and impressionable you are.

Great Sand Dunes

Denim: Scanning for large bodies of water. Results negative.
Pocket: You won't find one, cadet. This national park is an arid waste.
Denim: That does not compute. Children are playing. Families are having fun together. 
Pocket: Agreed. It is illogical. But Humans can find joy in anything.