Season 6, Episode 12: "The Label Maker"

They just put them in the same cage.

-What does he look like? -That's the worst part.

He looks just like me.

He looks like you, and he's working from the inside?

I look like me, and I'm working from the outside.

-Who is in the better position? -Not you.

This bizarre Harrad Experiment must end.

We'll take our check, please.