I dealt with a high ranking ex military pilot form India who claimed he had a lot of instrument time. It became very obvious after a short while he had no experience at all, but he steadfastly refused to acknowledge that he had no idea what he was doing, despite coming out of the clouds in the simulator upside down time after time.
Anyway we signed him off for VFR flight only. A short time later one of his colleagues arrived carrying a copy of the aforementioned gents paperwork. He had somehow managed to change all his grades to excellent and now he was signed off for instrument flight. It was a masterpiece of forgery! As far as I know he hasn't killed himself yet. All to save face................