Worry not, dear. You are a constant, not a variable.

[It's unforgivably nerdy, mathematical flirting, but Jack engages in it regardless, trying to play off of Eugene's attempted lightheartedness. Chin up, carry on, keep a cheery countenance - even if this isn't Abel, some things really don't change.]

And I think I'm almost ready to close up here. Shoddy bleeding attempt at subterfuge if even I can fix it, hey? [He leans back out of the panel, wiping his sweat-damp brow on his forearm and looking to Eugene.] Can you come work that control panel on the far wall for me? I want to give her a test run.