A couple of really weird things bother me about death.
First off, I'll just say that while I am not a religious person at all, I still believe that there may be some sort of afterlife and that ghosts and paranormal activity may be real. I don't think that the existence of a god is necessary for this to be the case. I just think that there is a lot we do not yet understand about this universe (or parallel universes, for that matter), and that it is plausible that one day there may be a scientific explanation for these things.
Now that being said...
I sometimes worry about what would happen if I were to die unexpectedly. Not obsessively, but it's in the back of my mind. I worry about other people having to clean through my stuff. I shudder at the thought of people finding anything that might raise an eyebrow. I've got a few secrets that would embarrass the crap out of me if anyone were to find them.
Sure if I were dead, I guess I wouldn't able to be embarrassed, but still, I'm disturbed by the thought of what might go through someone's head. Also, it is entirely possible that my dead self could watch this and cringe.
On a somewhat related note, I also worry that when other people die, they'll be able to watch me and find out all my secrets. They'll be able to see everything I do when I'm alone. I feel like I may never have total privacy. This is always going to be in the back of my mind.
My mind is a strange place.