I know what you mean.
Minivan drives up with a flat tire. Guy gets out, walks into the shop to a tech working under a hood, asks him to change his tire or fix his flat one, whichever is faster. Tech says “See the man in the office and he’ll help you right away.”
He asks me the same thing, I tell him we’ll put on his spare, keep his flat tire here, and he can come back later in the afternoon and we’ll have it fixed or replaced. “We’ll have you back on your way in less than 10 minutes.”
“Can’t that be done any faster?”