I’m not teasing, Danny42C, but how long had you been doing ATC (post-flying) before being ‘creamed off’ as a Shawbury Instructor? I get the feeling it was a few years, though.
When I did my GCA course in 1966, I had a Direct Entry fg off instructor (later AOC MATO) who must have done at least one tour ... but then those transitional years threw up all sorts of anomolies. There was (akin to WW2, I guess) a huge demand for new bums on seats in ATC, as the innumerable ex-aircrew ATCOs from WW2 were coming to the end of their service.