Wow, I never knew that.
It's a misconception that "crazy" people can't know they're crazy. The awareness of one's own mental state is called insight, and its level varies from person to person, crazy or not crazy. A schizophrenic person can know that they have schizophrenia and that they're currently hallucinating. The frequency of that is a whole other story, though.
How did they find your fact out? Did they interview dragonflies?