Think it’s easy being a librarian? Think again!

What are the toughest questions tossed at reference librarians?
I asked the city librarian about the system’s struggles in an interview for a local news website. The story appeared earlier this month, and it didn’t take long for cranky online commenters to descend. And then I got to wondering. Never mind Dewey and his decimals. What are the most difficult questions that reference librarians have ever had to answer?
I decided to ask them. Here’s what librarians from across North America had to say via email: