Boligarchs' Delusional Disorder: exhibit Francisco D'Agostino
The UK's National Health Service's (NHS) website defines Psychosis as "a mental health problem that causes people to perceive or interpret things differently from those around them. This might involve hallucinations or delusions." Then, on the topic of delusions, the NHS claims "delusion is where a person has an unshakeable belief in something untrue.