From Maria who works in an Aquaculture Library:
One day we had a local scientist come in and demand our copy of the Koran (Quran). Which, obviously, we had no copy of as we are a strictly acquaculture/fisheries/ocean focused library. My coworker and I spent a good 10 minutes explaining to him that we are a science-based library with no religious materials. He then asked if we had a copy of the Bible, and if we did have a copy of the Bible, why didn't we have a copy of the Koran? (He jumped to conclusions on this one.) I then explained that we didn't hold a copy of the Bible either. He then told us that we should get one.
And that was the end of the Koran emergency - he really needed a copy of it for up in his office I guess.