Barfly introduced this topic on main by reference to Eric Berne. Dr. Berne created the theory of transactional analysis and his 1964 best seller book "Games people play" introduced the topic to the public.
The subject has continued beyond the weekend and although I was going to wait until next weekend to comment on main, I figured it was better to create the topic here so it could be thrashed out.
From the viewpoint of transactional analysis the psychopath will always take the dominant role. Petulant demanding child to your adult, guiding, demanding parent to your child and will only interact adult to adult as long as they have control. The world is their oyster and everything within belongs to them.