For background, I work at an academic library open to the public and we have a large number of patrons who take advantage of this. So a guy comes up to the desk and asks for one of the reference librarians by name. That information is on our website, so I confirm that, yes, she works here. I state that she is in a meeting, and is there anything I can help him with? He says he's willing to wait, because he has questions about his research in the area of [topic]. (Note, this is NOT the librarian's specialty area, just some basic questions). I explain that any of the reference librarians can assist him, and what is his question? He states that he wants that specific librarians because she teaches. I explain that all the reference librarians teach. He... asks me about making photocopies? I don't know if he got it into his head that only the specific librarian can help him and he refuses to believe that we are all competent, so he lied about what his question is, or if he really wanted to call a specific librarian up from her office to explain about the copier.