Stand under Baccio Bandinelli’s Hercules and Cacus in Piazza della Signoria and look up. Hercules has a fistful of Cacus’s hair. Cacus is down on one knee, face tipped upward, parked right at Hercules’s hip with his mouth half open. From below, the two heads and Hercules’s genitals stack into a single vertical line. My first thought wasn’t triumph. It looked like the moment before a forced sex act. I don’t think that’s a dirty mind at work.