Zacs, that takes talent in YMB. Still a bit short of perfection. A retired RAF officer told me that he once lost a whole plane. One day it was on the inventory and then it wasn't, and they never did find out what happened to it.
I think the RAF officer (above) said that he, confronted with an empty space instead of an aircraft, put down "Spares, assorted; aircraft for the use of", which seemed to cover it !
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