<p>That Ursula K. LeGuin novel is The Left Hand of Darkness, and people all have a neutral sex, unless or until they enter a fertile phase and then they can take either sex (often depending on if they’re near someone who’s taken the other sex). A visitor from Earth (known as “the pervert” because he always is fertile - and male-) is crossing a frozen tundra or something with a neutral person on this planet, and well, you know what’s coming. Groundbreaking for 1969.</p>
<p>Anyway, none of my little girls had access to nail polish simply because of toluene. It’s nasty, toxic stuff - in any color.</p>