Do you believe in Ghosts?

When I moved into this house back in January, 2006, there was a room on one of the top floors that some called the "evil" room.  Every time someone passed by this room, they always felt uncomfortable with this room.  A housemate dubbed this room the "spiritual" room since he said it did not feel evil.  It is actually a relatively nice room, the only one in the house with a bathtub.

My cat always seems to like to run in and out of this room.  My dog sleeps just up the steps from that room.

A friend says it may be a ghost inside of that room.  I keep the door closed now but at times, I find it open.  Other times, it is difficult to keep shut.

This morning I woke up sweating.  My room had been a nice and cool 26 C when I went to bed at about 1230 AM.  I woke up hot wondering if my air conditioner was working.  I got off my bed and saw my door wide open.

What is strange about this was that I had locked my door earlier in the evening before watching some dvds.  Before midnight, I went to turn off the lights.  The switch was next to the door.  The door was closed.

When I shut the door I noticed that the door knob was still locked.  I tried to open it with it locked, it would not budge.

Is there is ghost in my house...still?

:-)