Interesting one. Ooh, I don't know! Yes, I think you're right, in certain circumstances. I guess I'd have to say that it probably differs from person to person, based on individual psychology*. But I guess to some extent we're all trying to find a way of dealing with the fact of our own ultimate extinction. So perhaps sometimes the fear is already there?

Hope I'm making sense, it's very early in the morning.

* aggregating into social practices, she adds, covering herself.