Micro-fiction, sewage/waste mention
The adventurers could only look on in horror as the Excremancer threw open the valve on the massive iron pipe and emptied the towns' raw sewage into the library; countless rare volumes of occult knowledge and spellcraft were soon submerged in foul muck.
"Why?!" cried the party's sorcerer, wounded by the loss of so much arcane wisdom.
"Fool!" gloated the Excremancer, "Before, I was but a simple sewage worker, but now, I have finally mass-turd the dark arts!"