When I was in some thirty five years ago, some muppet put me in charge of spray painting all the wheeled vehicles. To pass the time on this boring task I used to spray all sorts of interesting shapes using the camoflage, tits in profile, nobs both flacid and erect, testicles of various sizes. We once had a royal visit and all the kit was lined up on the square. It was obvious to me and my mates but no one else seemed to catch on. Perhaps she was just being polite?