Rachel: I can not believe he would do that to Mon—Whoa! (She stops suddenly and slowly turns to point at Joey. Joey is avoiding her eyes.) Joey, do they know that we know?
Joey: They know you know.
Rachel: Ugh, I knew it! Oh I cannot believe those two!
Phoebe: God, they thought they can mess with us! They’re trying to mess with us?! They don’t know that we know they know we know! (Joey just shakes his head.) Joey, you can’t say anything!
Joey: I couldn’t even if I wanted too.
One of the best things ever.