Hope you don't mind me saying this, but aren't you contradicting yourself? You say you're open minded but then call yourself a skeptic... I mean being open minded implies a blank slate with nothing written on it, open to new experiences and yet being skeptical implies already having preconceived notions of what you are about to experience. And I don't get the second part.... You believe in the possibility of ghosts but not in the ghosts themselves??
Scepticism is a component of an open mind. If you refuse to be sceptic about something, then you fall into the trap of believing in fairy tales. Having a preconceived notion involves not being sceptic about the possibility of a belief that directly contradicts what you already know.
For example: I am sceptical of Ghosts because I have yet to find a substantial piece of evidence to conclude that yes, in-fact they do exist. However, I have not completely ruled it out because there are things that we don't yet know about our Universe that includes theories which looks beyond the 3-Dimensional world we inherit. Christianity has made absolutely no contribution to the logical approach humans must take to find evidence of the existence of Ghosts.
This video demonstrates the closest possible theory of 'Ghosts' explained by the late astronomer Carl Sagan:
[video=youtube;N0WjV6MmCyM]https://www.youtube.com/watch?v=N0WjV6MmCyM[/video]