For MK's Jekyll & Hyde, it was two things if you count my sequel. When I was a girl, I used to have a black and white view of the world, but in reality, that's false. There are different kinds of good and bad people. Moreover, it's easy to see the person who looks out for you as annoying until you become the person who has to look out for someone. Parenthood taught me that.
For Cupcake War Machine, it was the realization that my life did not turn out how I thought it would, but that's not a bad thing. In fact, it was a good thing it didn't.
For Psychoborg, it was when I watching a lot of 80s cartoons as an adult and realized that the heroes were not so nice or heroic. Also, I began to find it strange that in He-Man, Skeletor's 'country' is in fact poor and has nothing yet is vilified just because in the 80s.
For Frankenstein, it was experiencing being given a chance. When you give people a chance to do good, they can do good.