Are you afraid of ghosts?

Are you afraid of ghosts? Many people asked me this question. So I answer yes I am afriad of ghost, I think this is the mysterious things and it can't comfirm by science that it is real or other things that me we think that it is ghost, so am afraid of it but not much. Many time that I watched movie in the thearter and I keep thinking about it at night so sometimes it make me couldn't sleep. Now if I see them or I can attest that it is true that in the world have ghost or not.