Pinky toe, I had to look this up. How had I never learned that term??? Thank you for challenging my brain today.

Enantiodromia is a principle introduced in the West by psychiatrist Carl Jung. In Psychological Types, Jung defines enantiodromia as "the emergence of the unconscious opposite in the course of time." It is similar to the principle of equilibrium in the natural world, in that any extreme is opposed by the system in order to restore balance. When things get to their extreme, they turn into their opposite. Wikipedia