Dear XXXBoy
Frankly there is NO ghost on earth .... it's all in your mind. As long as you dont do harmful things to ppl and treat ppl nicely and fairly, you will have no fear at all. And keep your mind as "free" as possible and you will not see "things" .... trust me!
Hmmm bro i start out not believing in "ghosts" too. I tend to believe that they are spirits looking for an outlet. And some times they tend to get a little aggressive. "Ghost" is jsut a name given to these spirits i think. Hmmmm neither do i believe in demons until 2 years back... sth happened while i was on a YEP trip to india.
I think take it with a pinch of salt. It could be there, it could not be there. But what ever it is. Go with a pure heart. And most of the time it will just pass.