Most psychopaths are sadists, whether they realize it or not. Many of the traits of psychopathy are traits found in sadism according to the Sadistic Personality Disorder Criteria:
-Gets other people to do what he or she wants by frightening them (through intimidation or even terror),
-Is amused by, or takes pleasure in, the psychological or physical suffering of others (including animals),
-Enduring, pervasive, maladaptive patterns of behaviour which are usually recognised before or during adolescence.