My RAAF instructor (I was an RAN Midshipman) at RAAF Pearce mid 1968 crossed himself (in the Roamin' Catholick fashion) as I taxied forward turning left, to see him do so, on my first Vampire solo; after earlier getting through the basic Winjeel training at Point Cook. Oh those RAAFie chappies and their sense of humour. Never understood it meself.