Exposed.

Michelangelo, David (detail), 1504

A principal of a Florida school has been forced to resign after a parent complained that sixth-grade students were exposed to pornography.

The complaint arose from a Renaissance art lesson where students were shown Michelangelo's statue of David.

Just look at art.  Think and learn ... and keep looking at art.

The greater danger for most of us lies not in setting our aim too high and falling short, but in setting our aim too low, and achieving our mark.

Michelangelo Buonarroti