Question about son and daughter?

Look, my brother picked on me the way brothers pick on sisters...until that day I lightly kicked him in the (and I mean I barely touched him). He crouched over, spun around slowly, backed in the bathroom and slammed the door. Oh yeah, he NEVER picked on me again - EVER. And he never mentioned a word to me about the light kick. My only regret is that I didn't figure this all out years earlier.