In the first part of this series we explored how scientific research has attempted to touch upon the Dark Triad of Narcissism, Psychopathy and Machiavellianism in the context of non veganism characterised by ego driven need to harm others with lack of empathy and also observed more in men particularly with respect to Machiavellianism. I also explained the little known Dark Tetrad including Sadism as a new angle separately from the Triad. There are some parallelisms between non-veganism and Sadism as well as anti-social behavior with some overlaps between all aspects of anti-social behavior in the Dark Tetrad.