Dollhouse, Season 1

Boyd:
They're eating lunch.

Topher:
They're eating lunch together, man friend. The same three. Even the same table. They're grouping.

Boyd:
Are you saying they remember each other?

Topher:
No, no, no. The wipes are clean. This goes deeper than memory, into instinctual survival patterns. Flocking. A whole mess of sparrows turning on a dime, salmon trucking upstream. This isn't a book club, man friend, this is the herd.

Boyd:
They're not bison, Topher.

Topher:
They're a little bit bison.

Boyd:
They didn't used to be.

Topher:
They volunteered for this.

Boyd:
So we're told.