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Gather round for a gruesome fact from the brain of J.K. Rowling because she's gone into extreme detail about how wizards used to cope with their pooping habits prior to the time wizards latched onto the muggle invention of plumbing.

As Buzzfeed brought up a while back, a Pottermore factfile compiled about The Chamber Of Secrets includes a description of wizards dropping their robes and pooping on the ground before clearing up the mess with magic. Yikes.

According to the author of Harry Potter, it took until muggles really got to grips with plumbing that wizards decided they should follow suit and pioneer a more private way of doing their business. Praise Merlin for that.

"Hogwarts’ plumbing became more elaborate in the eighteenth century (this was a rare instance of wizards copying Muggles, because hitherto they simply relieved themselves wherever they stood, and vanished the evidence)," the extract noted.

While this sounds more grim than, er, 10,000 sightings of theactual Grim - we reckon we could probably make peace with pooping in publicif it meant a letter to Hogwarts finally rocked up on our doorstep. You know, for the greater good and all that.