There are some real a***holes in this world.I used to know a few like that; it was nothing to do with being unable or even unwilling to pay, it was a "point of honour" in their minds to pay less than the agreed price.
They used to brag about any "success" stories, which they seemed to think proved what smart cookies they were.
They did later puzzle about how hard it was to get anybody out to do anything for them......
(Come to think of it, they also took long haul holidays to areas that were desperately poor and came back boasting how good they were at haggling the local traders down from $2 to $1 or even 50c, completely oblivious to the fact that that $1 could make a difference to somebody eating or not eating).
A Tradesman I know "Mark" had his roof reroofed the roofer "Chris" forgot to include the lead on his quote. Mark sat in the pub boasting to me how he refused to pay for the lead as it wasn't in the quote despite the roofer being upfront and honest about his mistake, Mark was so happy with himself...I asked him as a Tradesman himself where his moral compass was.
I reminded him that alot of Chris's friends wouldn't be happy to hear he had been screwed over or the person that screwed him over was boasting about it, you won't be feeling smart for much longer Mark.
The world is fully of Wally's