As an accountancy stude with the Army at Worthy Down in about 88 or 89 there was a call out at about 9pm one Sunday (Turned out some idiot had left a bag where it should not have been). Quick as a flash I was into DPM and turnd up at the army version of GDCC. I turned out to be the only guy or girl in anything like unform, so they made me (RAF sqn ldr) the Ground Defence Commander for the night!