Out of the Cauldron
Not everyone was happy when the wizards revealed they were real. Oh, there were the disgruntled religiosos, the griping theoretical physicists, and even a ticked-off fashion designer who realized he'd have to do frocks in the hated Hufflepuff gold.
But the worst were the librarians. Around the world, librarians seethed in anger. Why, you may ask? And the wizards DID ask.
The Chief Librarian for the Library of Congress said it best. "You couldn't have told us this in 1997? Now we have to re-catalog OVER HALF A BILLION BOOKS!"
He went off grumbling, "...and to think I thought it was bad enough when we had to move the dinosaurs out of the extinct animals section."