"Yes, we can; and no, we won't."

"This supplier we've been dealing with for ten years and have scores of emails from in our shared Inbox ... can you tell me their email address?"

It's a small question, but one of such awesomely staggering laziness and unadulterated time-wasting (he could have looked up the answer several times over in the time it took to walk across the room, deliver a pointless preamble  and then finally ask the question) that I'm still trying to decide if I should go for a walk or just beat the hell out of him on the spot.