Trained in mechanical engineering but then quit & went into design & manufacture of leather clothing. Had my own retail business for a few years, then ran a factory for someone else for awhile. Eventually became fed up & went back to engineering, got an industrial millwright license working in factory maintenance. Then a field service engineer for a plastics machinery manufacturer,eventually was the service manager, but quit when I saw the company was sinking out of sight.
Now I am back as field service engineer for another injection molding machinery manufacturer, senior troubleshooter, with a lot less headaches but not home so much.