After a 56-year career, Charles Roberts has retired again. He first retired in 2004 from Simon & Schuster, when his job as v-p, field sales director, was eliminated. This retirement didn't last long: after three months he started an author escort business in Houston and Austin, Tex. The business flourished and he added two associates. Also in 2004, he became a PGW telephone sales rep. After 10 years, he retired from Perseus but continued the author escort business. Two months ago, he decided to shutter that business as it "succumbed to Uber and its ilk." About his career, he says: "It was a hell of ride but all things end." He is now "pursuing other interests" and spending time with his family and traveling.