Domestic violence is the standard used for insanity defense to produce good result and Doing the same thing over and over again expecting a change but never changing anything is the standard used for least use of insanity defense.
Explanation:
The advantage of insanity defense is that the accused could avoid penalized with death, even if he is guilty. In the context of crime the sentence is very convenient as compared with an accused who is proven to be guilty, but it is not proven.
The insanity defense is rarely used because of the difficulty in providing legal insanity. Many criminal defendants suffer from mental illness and produce evidence of this illness such as psychiatric testimony.
Hence, Domestic violence is the standard used for insanity defense to produce good result because it changes person completely and Doing the same thing over and over again expecting a change but never changing anything is the standard used for least use of insanity defense.
