I could never have been allowed to take this snapshot.
It was impossible not to be attracted to this approximation to a circle on the Net. Would students see the comedy in finding the ratio of the area of the circular grass patch to the circumference formed by their covered heads? What would they make of the cock-eyed look? Yes, the comedy is inescapable. Photo-shopping of this web-picture thus became irresistible.
The opposite emotion on seeing this picture is, however, hugely (...)