Harold Schlumberg is such a person:
THIS IS QUOTED FROM HAROLD: "I've often been asked, 'What do you do now that you're retired?'
Well..., I'm fortunate to have a chemical engineering background and one of the things I enjoy most is converting beer, wine and whiskey into urine. It's rewarding, uplifting, satisfying and fulfilling. I do it every day and I really enjoy it."
Harold should be an inspiration to us all.