Our AEO in 1964 developed a phobia and withdrew from flying. He had already done one tour on Vulcans which of course had a bad reputation for rear crew survival even then. He was then re-roled to the Mark 2 and to the new low level role. Shortly thereafter he withdrew. I think he lasted less than 3 months out of the OCU.
As it was shortly after WW2 - 19 years - consider GW1 was 20 years ago - he was lablled 'chicken' and talked of having LMF. I believe he joined another air force as an ATCO.