QI-GU: Goddess of the Lavatory.

Like ZI-GU, she's one of the LAVATORY-LADIES; protecting, blessing and disinfecting all who use the smallest room in the house.
The story goes that she was the mistress of Liu-Bang, first Emperor of the Han Dynasty. It was one big unhappy family as QI-GU and the Empress Lu-Huo fought over domestic issues.
Empress Lu hated her so much that when the Emperor died, she stripped away QI-GU's official title and several of her external body parts.
But worse ignominy was yet to come. Empress Lu grabbed the suffering QI-GU, hauled her off, and threw her into the dirtiest, smelliest, ugliest, foulest latrine in the whole of China.
She then invited the new Emperor and all his ministers of state to come and look. It must have been a very carefully-worded invitation. But come he did, and fainted dead away at the sight.
It wasn't long before QI-GU's torment became infamous, and soon she was elevated to the rank of Goddess. With 'rank', we fear, being the operative word.