I am an Admissions Officer at an Ontario university; my alternative career is a formerly-licensed auto mechanic as my father owns his own shop. I work there on weekends, mostly on my own cars, sometimes friends cars and the odd job that my father doesn't want to do and saves for me :S

Had I option of doing it all again I would have likely gone into the Engineering field, likely related to automotive testing/developing/quality assurance and racing development.