Whether we wanted to or not, we now all hold the knowledge that magical folk in the Harry Potter universe used to have a rather unsavory way of relieving themselves before adopting the Muggle invention of a “bathroom.”
The official Pottermore account, which pulls its canonical revelations directly from J.K. Rowling, bestowed this nugget of information upon us in a Tweet posted Friday. This certainly fits the criteria of National Trivia Day.
Hogwarts didn’t always have bathrooms. Before adopting Muggle plumbing methods in the eighteenth century, witches and wizards simply relieved themselves wherever they stood, and vanished the evidence. #NationalTriviaDay
Source: IGN.com A New Disturbing Fact About Hogwarts Has Been Revealed