Inside one of the F-302s
McKay: You know, I've never actually been inside one of these before today. It's a little, uh, cramped, huh?
Sheppard: Just relax, Rodney. We're safe ... for the moment.
McKay: Great. Quick question, though, just out of curiosity: how much, uh, air do these things carry?
McKay: Uh, I'm just saying, because if this doesn't work, we'll have to go over the whole plan and who knows how long we could get stuck in here, and, and, so it-it-it would ...
Sheppard: You know what, Rodney? You're exactly right – it's a limited supply, so why don't we conserve it by you not talking?
McKay opens his mouth to speak. Sheppard raises a finger.
Sheppard: At all.