The X-Files, Season 6

Scully:
(looking in the crate) What did you find?

Officer Jeffrey Cahn:
Nothing conclusive, really, but I can tell you the dog's not likely still on the ship.

Mulder:
How did you determine that?

Officer Jeffrey Cahn:
You ever owned a dog, sir?

Mulder:
Yeah.

Officer Jeffrey Cahn:
Had to clean up after it? (Mulder grins and agrees)

Scully:
I don't suppose you can tell us what kind of dog this is.

Officer Jeffrey Cahn:
I'm not really sure. The man it was shipped to's name is Detweiler. Dr. Ian Detweiler. Calls himself a "cryptozoologist."

Mulder:
(interested) Cryptozoologist?

Officer Jeffrey Cahn:
They deal with animals thought to be extinct.

Mulder:
(continuing) Animals that aren't supposed to exist like Sasquatch and the Ogopogo and the Abominable Snowman and-

Scully:
(interrupting) Don't mind him. He'll go on forever.