[ERA Chas]

Brent-that's the best customer you NEVER got. I'd have told him before unloading from the truck "I get $200 flat for tear down and inspection."
After opening, I'd have said "I can't help you".
The guy is an obvious D**k and even if he paid and you made it right, his piss-poor judgment and operational practices would have made another grenade.
Then what?? "Lykins did this" and you take a worse advertising hit than passing on a $3K job.
Stick to your gut and your rep will remain first class as we here and on FE know it.