In fact, if you mentioned this in the interview it could help you get the job. They're not looking for someone to replenish toner.
Edit: to whomever downvoted me, this is not a joke, I'm being 100% serious here. If it seems unbelievable then go watch some episodes of PA TV or something, that's just how it is there.
It only makes sense to ask a rockstar do-it-all to do it when you already got 40 hours from him, aren't paying OT, don't give a shit about his mental health, and are wringing as many hours as possible out of him to reduce the effective hourly rate.
This is the thinking of a scumbag cheapskate turd. No one who is paying a fair price for talent like this would waste it on vague low-level chores.