I did. 9 years ago. Technically I could find a job, just not paying what I felt I was worth (I was looking to personally gross $80K). I borrowed the start up capital on a credit card and kept my expenses dirt low. I also had my spouse to provide financial support to cover our household expenses.
I was extremely fortunate almost immediately. Actually I went into a high profit field with extremely low overhead.
i made $750K or so last year.