My point is:
* Even with significant obligations, a startup failure is unlikely to result in your opportunities being limited for very long. Yes, you'll probably end up needing a "real" job for awhile, but (a) not necessarily for very long and (b) if you crater a startup, a normal job is probably a good move anyways.
* If the only job you can secure after killing a company is as "cube rat", consider whether your prospects as an entrepreneur are really all that much better. People like to believe that entrepreneurship is something totally different than executing a conventional career, but that's mostly a myth.