NTSB reports are full of accidents and incidents whereby the main cause is "pilot error", most of which involve idiotic actions of the pilot/non-pilot. This pseudo-pilot acted the fool and paid dearly for it. The only time I ever cussed out a flyer was when I observed a student pilot taking up a passenger. Nothing boils my blood more than someone disobeying the rules in a "game" where breaking the rules can cause the death of innocent people.