"Harry Potter" officially reveals how wizards solved urgent problems before using sewers?

Whether we really want to know or not, we now know a weird setting of "Harry Potter": in the magical world of Harry Potter, before people adopted the "bathroom" invented by Muggles, they used a speechless way to solve their urgent problems.

The official Pottermore Twitter account, known for getting official reveals straight from author JK Rowling, gave us this information in a tweet published last Friday, just in time for National Trivia Day in the US.

"Hogwarts didn't always have toilets. Before the sewer system invented by Muggles in the 18th century, wizards and witches simply 'liberated themselves' on the spot and then used magic to destroy the evidence at the speed of light."

Unfortunately, this explosive exposure of the black question mark cannot dispel people's curiosity about gossip (???). Fans were shocked and thought of many excellent questions:

What about children who can't use magic yet, or Muggle-born children who are just starting school?

What do those students who used to pee anywhere as a habit do now that they have grown up?

Did the magicians simply purify themselves or did they use special magic paper?

Does this mean that pure-blood wizards who hate Muggles still adopt the ancient custom of avoiding Muggle sewers?

Emmmm, it is really disillusioning to imagine that those great wizards could "relax themselves" anytime and anywhere in the classroom, on the battlefield, or even on the Quidditch field. Let us look forward to whether the official Pottermore Twitter can give a satisfactory answer to the fans.