Got it! It's one of my favourites, too! And not only mine. It happens to occur in about every other fic...
"And another thing. You're not working _with_ me, you're working _for_ me. I call the shots. I ask the questions. You're low man. I'm top banana. That's the way I like it. Comprende?"
"You like to be on top. Got it."
"Don't push me, Kent. You are way out of your league."
Lois and Clark in the Pilot (2).
Edit: I'll start a new thread with the next quote!