I mostly meant that I don't have any faith that the code will work correctly. I'm not even assuming malice. There are all kinds of super simple rounding mistakes you could make that would mess up the rounding. Especially if you're writing for a market that you're not part of (eg, out-sourced coders living in one country, but writing POS code that is deployed in another country).
That said, do I think that someone, somewhere, has/does/will out of malice abuse this specific oft-ignored dark corner of the marketplace, for personal gain? Yeah, I absolutely think that:
I've read Metamorphosis many times over the years, and I've come to the conclusion that it's a very subtle dark comedy. But of all the punchlines, including the ending, are (for lack of a better term) situational. I can't explain further without spoilers, so HN might not be the right format for it.
That said, do I think that someone, somewhere, has/does/will out of malice abuse this specific oft-ignored dark corner of the marketplace, for personal gain? Yeah, I absolutely think that:
https://en.wikipedia.org/wiki/Salami_slicing
https://www.youtube.com/watch?v=eVSlE28hOgI