In my younger days (not that long ago) when I first left school I worked for Marconi Underwater Systems, one of my duties was to send equipment north to Fife to get it calibrated every six months. These small modules were sent up and down in wooden boxes. Several of the boxes were rather tatty and I was asked to go off site across the road to the paint warehouse (Brewers)and purchase some special Scottish paint. I followed the procedures by getting my pass out slip signed by my line manager, house manager and getting petty cash from the accounts department, it was only when I got to the gatehouse to show them my signed pass out that they made me tell them really slowly what I was going out for - Tartan Paint............ how silly did I feel, I walked back to the office - I don't think there was a dry eye left.