I was helping answer the main switchboard for my company one day, when a customer calls in and asked who had called him from our business.
I explained to him that unfortunately, the number that he had called was that of our switchboard and I had no way of knowing who had called him. He asked if I could find out who it was, so I nicely explained that we have about seventy employees spread between four branches, and that whoever had called him should have (as per policy) left a voicemail.
In a very agitated manner, he then instructed me to "Well, then GET UP and GO ASK who called me."
I said, "I'm afraid that's not possible, sir, but you should have been left a voicemail with the name of your caller. Do you happen to know WHY someone would have been trying to contact you?" (At this point, I was thinking that if I could pinpoint WHY someone would need him, I might at least be able to direct him to the correct department).
"Not that I know of. You need to get up and go find out."
"Sir, I have no way of doing that. Were you left a voicemail?"
"LISTEN TO ME. PULL UP MY ACCOUNT AND FIND OUT WHY SOMEONE WOULD HAVE CALLED ME."
"Sir, while I do have the ability to pull up your account, that will in no way reveal to me why someone called you. Did they leave a voicemail?"
"GO FIND OUT."
"Did they leave a voicemail?"
"I DON'T KNOW"
And then....he hung up on me. So, I never did find out who called him. I just don't understand why he couldn't grasp that I honestly had no way of telling him who had called him.