actuary, n.All

An Actuary is someone who brings a fake bomb on a plane, because that decreases the chances that there will be another bomb on the plane.

An Actuary is someone who brings a fake bomb on a plane, because that decreases the chances that there will be another, real, bomb on the plane.

An Actuary is an accountant with a sense of humor.

An Actuary is someone who cannot stand the excitement of chartered accountancy.