Breaking Bad, Season 3

Walter:
Okay, look, we're running late, so let's just get started. The sooner we do it, the sooner we're done.

Jesse:
Fricking finally. [Jesse grabs a sack and just as he's about to put in the tank, Walt stops him]

Walter:
What are you doing?

Jesse:
It's time to alkaline.

Walter:
Have you not heard a word I said? No cooking until this fly is dealt with. Have I been speaking to myself?

Jesse:
The timer went off, yo! How long is this batch gonna be good for? An hour? Two?

Walter:
The batch will be good for nothing if we don't clear the contaminant.

Jesse:
"Clear the contaminant?!" We're making meth here, all right? Not space shuttles!!

Walter:
We're making nothing until we catch this fly.

Jesse:
What fly? All right? Where the hell is this fly? Not like I even seen thes thing! Maybe your positive pressure blew it out the door or something.

Walter:
No, no. It is here. It is around, okay? He's around, and I'm not going to expose this batch to the open air and contamination, period. Now, you can leave to deal with this myself or you can help me. But you're right, we're running out of time. So I need you to answer right now. [Jesse drops the sack and walks off] Okay.