I've done it. Quit a pretty good job at a startup because of burnout and lack of enthusiasm. Spent a lot of time going to bookstores and coffee shops and motorcycling. I don't think I wrote a single line of code.

After about nine months, because I was kind of bored, on a whim I went to a "Brass Ring" job fair in Santa Clara. Found myself interviewing and got a job at another startup (which turned out to be an utter train wreck, ugh).