Fez, Kelso and others in “The Third Wheel”

Fez

Kelso, you should tell Jackie where you go. That way, if she wants to do it, she can find you and do it. Boy, do I want to do it!

Kelso

Fez, the foundation of every good relationship is three words: I don't know. Where are you going? I don't know. What are you thinking about? I don't know. Who is that under you? I don't know. You see, it's bulletproof!

Why are you friends with him?

Hyde

I don't know. [starts making out with Jill and Eric appears behind them]

Eric

Hyde, what the hell? Why is she in my seat?

Hyde

I don't know. Heehee, that's a good one, Kelso!