A slight thread drift. But a few years back I knew a young guy who had either just got his CPL or was building hours for his CPL. The enterprising lad was "chartered" by a German tourist to do some aerial pig shooting in a rented C150.
Anyway CASA (probably was CAA back then) got him for a ramp check. Despite flying for hire and reward in a private aircraft, no low level approval, no door off supplement, and a well armed paying passenger, his great crime was flying without a current WAC chart and protractor!
Today he flies A320s!