The essence of the paranoiac is in every act and thought to reproduce, invoke and justify the circumstances that generate their paranoia. To indicate a specific instance may be to miss the point. Being a generalised bias of identity, individuation and subjectivity – it is a global property that appears in and as culture, communication and the complexity of human experience.
Note also that the self-propagating (as though cybernetic) feedback loops that generate and self-validate a pathological relation with reality are really nothing other than those complex adaptive dynamical orientations that exist in all information and energy-processing systems, simply rendered as human behaviour and experience.