Shame on you. It is an amazingly effective word. The simple rebuke, “You should be ashamed of yourself”, uttered by someone in a position of parental authority has the potential to deeply affect the shamed individual. There is an old stereotype about African parents. Do what you must but do not bring shame to the family name. That is how we ended up with the black sheep characterization. African parents particularly of the staunch religious ilk had a low tolerance for non conforming behaviour.