A student was scribbling. Scrutinizing her copy of the handout, I went up to her and found the athletic, outspread Greco-Roman figure of a Discobolus wearing an enormous, fuzzy pair of shorts. Worried, I scanned the nearby desks — this photo of a silhouette made of stone, seen in profile, had seemed alright to me; it looked all the more removed from a naked body since the photocopier had smudged its contours. But I should have known …