'Everyday Sadists' Are More Common Than You Think

Serial killers and sexual deviants aren't the only people who take pleasure in other people's pain. Sadistic personality traits are more common than you'd think — more than half of people show these both in personality questionnaires and in their actions in the lab, according to a new study published in the journal Psychological Science. People who score high on a sadism personality test find pleasure in behavior that hurts others and will even go to extra lengths to make someone suffer, the r...