Good Lord, you've all scared the crap outta me. Why I chose to read this entire thread at 3 am in the dark is beyond me but I don't think I'll be sleeping too much tonight. My dog passed away 2 months ago and sometimes I think I hear her walking in the kitchen (we have tile, so her nails always clicked against it). When she was alive she did the occasional stare into space thing which freaked me out. But if we have a ghost, then it is a nice one because it hasn't bothered me. The only time I thought there was a ghost in this house was after we first moved in (I was 14) and I just got out of the shower and all of the sudden my radio turned off by itself. That scared the crap out of me because I was home alone so I snatched up my dog and hid in my room until my mom got home because I had such an uneasy feeling. I think my other house that I grew up in might have been haunted though. It was a lot older, but then again it could have just been my overactive imagination. I definitely think my neighbor's house was haunted though. Scary...
