A person's thinking or behaviour is classified as abnormal if it violates the ( unwritten ) rules about what is expected or acceptable behaviour in a particular social group
Anti Social Personality Disorder is an example of this
Social norms broken by people with APD are
Fighting and aggression
Lying , manipulating - superficial charm
Lack of guilt / remorse
Psychopaths with APD are abnormal because they don't conform to our social / moral standards
