[WadeF]

This is a good point. There's no sense in thinking yourself out of a startup, but at the same time it's likely something crappy will happen while running a startup.

You may want to go to a cushy job at that point in time, but you need to be able to at least be comfortable enough to say "No, I'm going to do this."

If you're terrified of a crappy situation it's a good gut call for yourself to figure out if you're cut out for being a founder or not.