There was someone in my parents community that was a toll collector at one of the PA/NJ bridges. (Can't remember which one, and it doesnt really matter)
This person got an ingenious idea of putting a cup near where you throw the change in, so the toll collector could "reward themselves". Well, this person got caught. His intake on what was counted didn't match to how many cars went through the bridge.
It started so innocnet like maybe a few dollars a day, and it eventually was thousands of dollars!
Anyway this person got arrested