Wikipedia: “Psychopaths gain satisfaction through antisocial behavior, and do not experience shame, guilt, or remorse for their actions. […] lack a sense of guilt or remorse for any harm they may have caused others, instead rationalizing the behavior, blaming someone else, or denying it outright. […] also lack empathy towards others in general, resulting in tactlessness, insensitivity, and contemptuousness. […] can have a superficial charm about them, enabled by a willingness to say anything to anyone without concern for accuracy or truth. […] They take what they want and do as they please.”