Slumlords are exploitative by nature, and in this lucky redditor's case, not very smart. After u/nopanicprepper experienced a series of plumbing issues in their home, they notified their absentee landlord , who refused to pay for any repairs. Instead, the landlord “allowed” OP to do the repairs since OP was an engineer. (How generous.) OP maliciously complied, and to the landlord's horror, sent over a hefty invoice for parts and labor. Keep scrolling for the whole story.

Can you say, fire hazard?

Ceilings across America are dropping like flies

Well that's creepy