Janitor is whistling a tune while they diagnose problems with a quantum computer.

Rebel Worker 3, pushing a baby seal around like a broom: "How do you stare at that screen for so long?"

Janitor: "Hmm?"

Rebel Worker 3: "If I stared at that screen for as long as you guys do, I'd go blind."

Janitor: "Well, I'm not the one with glasses. Do you know anything about stabilising supercooled ions?"

Rebel Worker 3: "It's funny you would ask that."