Episode Out of Gas: Mal to Wash in Serenity’s cockpit:
Out of Gas (2002)
Mal: Not if all you’re gonna do is sit around here and whinge about it, no.
Wash: What do you expect me to do, Mal?
Mal: Whatever you have to. And if you can’t do it from here, then get a suit on and go outside on the side of the boat…
Wash: And what? Wave my arms around?
Mal: Wave your arms around, jump up and down, divert the nav sats to the transmitter… whatever.
Wash: Divert the… - right! Because teenage pranks are fun when you’re about to die!
Mal: It’d give the beacon a boost, wouldn’t it?
Wash: Yes, Mal, it would boost the signal, but even if some passerby did happen to receive, all it would do is muck up their navigation.
Mal: Could be that’s true.
Wash: Damn right it’s true. They’d be forced to stop and dig out our signal before they could even go anyplace… well, maybe I should do that, then!
Mal: Maybe you should!
Wash: Okay!
Mal: Good!
Wash: Fine!
Jayne: Hey! What you two think you’re doing? Fightin’ at a time like this? You’ll use up all the air.