I agree, I have never actually been fired from a collapsing company, but as an intern I have been in the meeting room when a company was folded, and I have also seen a few companies collapse after I left. I'm a realy early guy, I tend to leave when the timesheet comes, so there is probably some runway left when I leave.
It's pretty easy to get laid off a lot if you work in startups. You join and know there is a ticking clock in the background. If you don't, you probably should.
Every startup thinks they are the 1 out of 10 (because why wouldn't they, you have to.)