I was shopping today and my attention was drawn to a mum going absolutely ballistic at her (6yo?) son. I have absolutely no idea what the lead up to this was but it was the mother that made me look round, not the behaviour of the boy. When I looked he was hanging his head in shame, she was shouting. I just can't get it out of my mind. I thought it was none of my business but it's niggleing me. AIBU?