Person in question wasn't exactly financially secure...I think he had about a grand or two in the bank, if that.
I think what commenters here are trying to drive home is that people have different "set points" about what acceptable risk tolerance is, and that we build up these ideas in our head of "I could never do X or live through X". But then if X happens, and we are experiencing it in the moment, suddenly the human brain has a way of adapting, most of the time. The important thing becomes that we are still alive, and we can still make choices, and then all the other strictures we set for ourself fall away.
Now, does that mean I suddenly want to go homeless, or have a grand in net assets, or live in a house where they didn't bother to finish all the walls, or try to build a startup while my kid is in the NICU? No. But by putting these options on the table, instead of making them no-go zones, you can consider them rationally and evaluate the likely probability of them happening, and then deal with them if & when they come up.