Call it survival instincts, or in my line of work flight or fight. It's not unnatural to feel one way but about a situation or scenario, but have uncontrolled opposite actions. I grew up fearful of death, but as I started my career and the interactions with death I have, I grew to accept it. If anything I'm more intrigued by it, what happens after. But then again I'm just intrigued by the unknown period. Where'd the universe come from? What started the thing that started that, and so on. Anyway back to topic, even with being more accepting to death, I think if that situation ever arose I would have a hard time actually going through with it.