>>212765755Hagrid’s cabin isn’t plumbed in. He has to hike up to the castle two or three times a week to squeeze out some absolutely monolithic turds. Think about it. He’s twice the size of a normal man, and subsists entirely on grilled sausages, honeyed hams, roast turkey legs, mulled mead, fire whiskey, butter beer, treacle tart, ice cream, pumpkin pasties and his home made rock cakes. His sphincter must be absolutely gargantuan, but even it would be strained to it’s mighty limits by his diet.
Dumbledore had to perform very dark magic indeed on the school’s plumbing to accomodate his freak groundsman’s odious leavings. And, as is often the case, when you let one evil in openly, another crawls inside in the first’s wake. Although, for that poor basilisk? Imagine the smell.