it's the second bounce that kills you. First shatters bones; the second drives them into organs.
Madness string 101792
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.