Star Trek: Deep Space Nine, Season 5

Worf:
Where did you get that... thing?

Odo:
From a man named Cyrano Jones. He told me tribbles like everyone. Well, this one doesn't seem to like you.

Worf:
THE FEELING'S-- [lowers his voice] The feeling's mutual. They are detestable creatures!

Odo:
Hm... interesting. It's been my observation that most humanoids love soft, furry animals, especially if they make pleasing sounds.

Worf:
They do nothing but consume food and breed. If you feed that thing more than the smallest morsel, in a few hours you'll have ten tribbles, then a hundred, then a thousand!

Odo:
Calm down.

Worf:
They were once considered mortal enemies of the Klingon Empire.

Odo:
[scoffs] This?! A mortal enemy of the Empire?

Worf:
They were an ecological menace, a plague to be wiped out.

Odo:
Wiped out?! What are you saying?!

Worf:
Hundreds of warriors were sent to track them down throughout the galaxy. An armada obliterated the Tribble homeworld. By the end of the 23rd century, they had been eradicated.

Odo:
Another glorious chapter of Klingon history. Tell me, do they still sing songs of the Great Tribble Hunt? [chuckles]