I remember many years ago (about 1970 actually) when on 46 Sqn (Andovers) we had an elderly Master Air Quartermaster (before that American abomination of Air Loadmaster was adopted) who failed his categorisation check in respect of combat survival conducted by a young Flt Sgt AQM.
Said Flt Sgt was surprised when the paperwork was returned to him with a note stating "I believe that you have made a mistake and you may wish to reconsider your assessment." He promptly returned the paperwork with a note stating that there was no mistake and the MAQM had failed the test.
Some days later he received a telephone call from a Very Senior Officer who suggested that he may wish to reconsider his decision - he refused. The VSO then pointed out the MAQM had been his Wop/AG during WW2 and had been shot down twice over enemy occupied territory - and had got back to Allied Lines both times!!