It was common in ancient times to place a bright red mole on the arm of a maiden, which resembles a lotus root, in order to test women's chastity. This was called "Shou Gong Sha". People who don't know the origins might think that "Shou Gong" means guarding the sacred and wonderful place. In fact, "Shou Gong" is a type of gecko, with a slightly flat body and a grayish-dark spine...