What if there was no fine for letting your dog poo on the footpath? No consequences for hitting your brother or sister? And teachers never gave detention for breaking a school rule? If we lived in a world without punishment, would we all start just doing whatever we wanted? Or are there better ways to deal with people doing the wrong thing?  Brains Trust: Plenty Parklands Primary School in Mill Park, Melbourne: Mara, Roni, Alana, Isaac and Adele.