Psychologists have profiled the kind of person who is willing to confront anti-social behaviour
“Lower your music, you’re upsetting other passengers.” Without social sanction, society frays at the edges. But what drives someone to intervene against bad behaviour? One cynical view is that it appeals to those who want to feel better about themselves through scolding others. But research putting this to the test in British Journal of Social Psychology has found that interveners are rather different in character.