Yes, we all have our weak moments when we consider the fragility of our mortality. "No we don't!" you cry, and I say "Shut up kid!" If you don't ever consider your mortality, then chances are you're still a fairly young pup, probably a teenager, at which age we all believed ourselves immortal. Yes, even (in fact, especially) those boy-racers who killed themselves in head-on smashes. A common occurence here in the NE of Scotland. The young lads at sea and working offshore always had more money than sense.
But no, as you get older (I'm not that old... yet), your thoughts do turn to the possibility of shuffling off from this mortal coil. You may well consider what could contribute to this event. Anyone who has watched a relative or friend die the long, slow and painful death from cancer, would presumably hope that they will either drop dead in the street, or simply just not wake up some morning. Indeed, that would be most fortunate if that were the case, but let's not make it too soon though, eh?
I'm only 36, but I've noticed a rapid decrease in the number of weddings I get to attend, over recent years, and a most unfortunate but dramatic increase in the number of funerals I've been too. Time stands still for no man, they say, and I'll be damned if it doesn't actually speed up. I think Einstein would back me up here, assuming that gravity has less of an effect on you, the older you get. You may well disagree with this hypothesis, but yes, it's true, even Einstein agreed that his space/time theories were not universally applicable. It's my own opinion, but I suspect that binary stars would be a good place to start looking for answers!