were there any cases recorded who feigned to be insane?
Yes, the case of Mafia boss Vincent Gigante, who pretended for years to be suffering from dementia, and was often seen wandering aimlessly around his neighborhood in his pajamas muttering to himself. However, testimony from informants and surveillance showed that Gigante was in full control of his faculties the whole time, and ruled over his Mafia family with an iron fist.
Insanity
One particularly famous example of someone feigning insanity was the case of Mafia boss Vincent Gigante, who pretended for years to be suffering from dementia, and was often seen wandering aimlessly around his neighborhood in his pajamas muttering to himself. However, testimony from informants and surveillance showed that Gigante was in full control of his faculties the whole time, and ruled over his Mafia family with an iron fist.

what is diabolus in musica? It is the eighth studio album by American thrash metal band Slayer. anything notable about the title? It is a Latin term for "The Devil in Music" or tritone. and what theme is it based on? Religion, sex, cultural deviance, death, insanity, war, and homicide. who are its members? Kerry King, Dave Lombardo, Tom Araya and Jeff Hanneman. what were their touring destinations for promotion? UNANSWERABLE can you brief me about the the 5th theme mentioned? It is a term that describes a spectrum of individual and group behaviors that are characterized by certain abnormal mental or behavioral patterns how did ancient greece deal with it? UNANSWERABLE are there medicines to cure it? Witch doctors and shamans used to apply magic, herbal mixtures or folk medicine.
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Insanity [SEP] Feigned insanity
One particularly famous example of someone feigning insanity was the case of Mafia boss Vincent Gigante, who pretended for years to be suffering from dementia, and was often seen wandering aimlessly around his neighborhood in his pajamas muttering to himself. However, testimony from informants and surveillance showed that Gigante was in full control of his faculties the whole time, and ruled over his Mafia family with an iron fist. Today feigned insanity is considered malingering. In a 2005 court case, "United States v. Binion", the defendant was prosecuted and convicted for obstruction of justice (adding to his original sentence) because he feigned insanity in a Competency to Stand Trial evaluation.