The customer may always be right, but they rarely ask the right questions. Amongst others this week...
"Have you got any spare keyboards? Mine's not working" transpired to be "I've left the dongle for my wireless keyboard at home"
"Can you update a graphic - we've got a newsletter going out today with a typo" was really "the person who made the graphic has gone home, and the source files are on their laptop"
And - as this one - external customer chasing up an order for another company.
Always respond with a question. You might come across as a dick, but you'll hopefully get to what they're not telling you, and hopefully solve the problem rather than patching it.
Also, "energetic optimism of a Monday to the deflated downtime of Friday".
Is that a thing?