Uh-uh, no spectators in my class. You wanna come, you gotta work.

[Her tone is teasing, but she's serious enough under the levity. Shepard's reputation as a hard-ass is honestly earned, and she's proud of it.]

And nobody here's an astronaut unless they plan to spend a couple weeks on a research vessel then go home in a disposable escape pod. You've been living in space for at least a month, now, you're no astronaut, you're a spacer.