| plead insanity | 1.71 | He had pleaded insanity. | ||
| stop insanity | 0.53 | Stop the insanity. | ||
| claim insanity | 0.33 | He claimed temporary insanity. | ||
| feign insanity | 0.33 | She feigned insanity so she could enter a mental asylum and expose its lurid conditions. | ||
| fake insanity | 0.26 | The prosecutors say he has long been faking insanity to hide his crimes. | ||
| prove insanity | 0.26 | To prove insanity, the defense must convince the jury Yates could not tell right from wrong. |