Do you believe/ever seen ghosts?

I do believe in ghosts. I have never seen one and not sure what I would do if I did. Although, I had a very unusual experience the other day that you might be interested in reading. Its a bit long.... The other day I was typing away at the pc as I am doing now and the stereo came on, I did not get up immediately because I was in the middle of something but a bit later I got up to see why one of the kids turned it on when the tv was on at the same time. Neither child was in the living room so I went to each room and asked them both who turned on the stereo, both denied doing so and I just waved it off as oh well. Ok so later my aunt calls and were talking and soon are conversation goes into a conversation about my deceased father and how another aunt believes she feels his presence stongly, ( I didn't bring this up into the conversation, I am not even thinking of the stereo incident until my aunt begins the conversation) anyway this brings my thoughts back to the stereo and I began thinking of the song that was playing, it was a song by Reba McEntire and it was the one I believe it is titled, "The Greatest Man I Never Knew." My curiousity and wonder is getting to me and so are the chills. I go over to the stereo and turn it on, thinking I may have turned off some type of communication from my father. To my complete amazement the radio station isn't even on country but a local rap/hip-hop station, that would NEVER play a country song! Was my father there that day? I don't know. I want to believe he was, if so it would've been the first presence I have ever felt of him and wish I wouldn't have just shrugged it off.