Ask HN: Specification gaming examples in employee reward systems

Some of you may remember the list of "Specification gaming examples in AI"

https://docs.google.com/spreadsheets/u/1/d/e/2PACX-1vRPiprOaC3HsCf5Tuum8bRfzYUiKLRqJmbOoC-32JorNdfyTiRRsR7Ea5eWtvsWzuxo8bjOxCG84dAg/pubhtml

I've heard stories of employee reward system misuse, so I was wondering if there exists a similar list of ways people have devised to misuse reward systems.

If not, share your story or stories.