Not done Sir, but doing.

Plenty is doing.

"P.Costa and R.R.McCrae (1980) found that there was a subset of subjects in their [longitudinal] study who could be described as experiencing a mid-life crisis. However, their data indicated that this subset of individuals could also be characterized as having enduring neurotic tendencies, and that evidence of high neuroticism as assessed by self-report measures was present several years before the occurrence of a mid-life crisis."

Nathan BRODY, 1988, Personality. San Diego : Academic (Harcourt Brace Jovanovich).

Disclaimer: this quote appears here only to spark discussion. It is not endorsed one way or the other. Make up your own mind. Or just refresh the page for another viewpoint. From a collection assembled by the late Chris Brand.