"A person with delusional disorder may be high functioning in daily life and may not exhibit odd or bizarre behavior aside from these delusions. The Diagnostic and Statistical Manual of Mental Disorders (DSM) defines six subtypes of the disorder characterized as erotomanic, grandiose, jealous, persecutory, somatic, and mixed, i.e., having features of more than one subtypes.[2] Delusions also occur as symptoms of many other mental disorders, especially the other psychotic disorders."

So,.....no difficulty , say,.....driving a tow truck ?

GTC

Member, Clan of the Border Rats
-- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain