Oh the checklist... another good example indeed.
what grinds my gears is the facts some guys will do part of the checklist by heart or will not check anything while reading it or not proper checking. Like for the parking brakes, seat belt, predictive windshear, they will look at the switch instead of looking at the Ecam memo.
Or one last people who will call the check list in a non standard way: « Before start checklist down to the line » instead of the correct shorter way: « Before start checklist ».