I put a rag into a new water heater exhaust to keep debris out and installed it in a rental.
I get a call a week later, there's been an accident. I show up and there's a ton of ems and police. They ask me where the gas shutoff is, and I go down to shut the gas off and see the end of the rag I forgot sticking out of the top of the heater.
Ripped the rag out, shut the gas off and head upstairs only to be told all the tenants were DEAD.
I drink all day now and sleep. It's killing me from the inside every single day, but if I say anything my family is ruined; we have a bunch of rental properties and we'd be shut down.