"Man, I just left the lab, and did you know it's autumn now?! Ridiculous how much they have us work."
And I'd always mumble something vaguely affirming in their direction, just so they don't realize I am a massive slacker who, in fact, does things entirely unrelated to chemistry in his spare time. But now? Now, whenever a fellow student complains of working weekends, I can nod knowingly, basking in the bond of shared suffering all grad students theoretically share. But that's not all-- If I'm feeling especially successful, I could instead peer at him over the rims of my lab glasses whilst saying nothing, as if to say "Surely this is nothing to complain about, lazy person." And then I'll swagger past, head high, while the unfortunate fellow I've just shut down thinks to himself,
"Now that's a graduate student."
The possibilities are limitless.