The account of Terry Peat and his 'exploits' received coverage on pprune several years ago IIRC.
Terry was an instructor at Tern Hill when he decided to disappear! I returned to the base, after a detachment to Malaya, and was greeted at the O/M door with news that he was thought to have drowned on a diving trip. A cashed in railway warrant, quickly suggested otherwise but for me, the abandonment of his wife and daughters left me with little respect for him, although I always got on well with him.
I recall reading of his return in about 1973 or so.
Old Duffer