While on about RAF Police, QRA Germany..... looked on at an RAF Plod with a large commercial can of coffee counting out spoonfuls, asked why? Plod Boss had thought to much coffee was going missing so wanted to know how many cups could be made from one large tin. Suggested he counted spoonfuls into a cup then cup fulls to give him the quantity... eyes glazed over as you could see him trying to process the idea and then he resumed counting.