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.
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.
It took wizards literally thousands of years to learn not to shit their pants, an art muggles mastered in, like, the fucking neolithic.
Also, pluming in the eighteenth century was... basically nonexistent. Maybe it's meant to say nineteenth, but that would about a century more of pants-shitting.