Madness string 82119

Random mermaid
There is only one sin, and that is theft. When you kill a man, you steal his life. You steal his wife's right to her husband, his children's right to a father. When you tell a lie, you steal someone's right to the truth. There is no act more wretched than stealing.

Kids have a fundamental sense of fairness and when they see a situation where they feel things are unfair, they will sacrifice their own advantage or sacrifice to punish those behaving selfishly in order to maintain fairness. I imagine that you noticed the injustice in the inequality of how your parents treated you both as a child and used your kid logic to correct that injustice to maintain fairness.