actually had chits declaring that they were no longer mad
.. we had some of those on the SH Force too...
I recall one occasion in the mighty Wessex (Queen (Mother) of the Skies) the following conversation took place...
Co-pilot: Hey boss...... are you sane?
Moi (surprised): Er, well, yes ... I suppose so
Co-pilot: But have you got a chit to prove it? - Cos I have!
Crewman's voice (from engine room): And so have I!
Moi: