Kuilui said:
It always amuses me when people say ghosts don't exist. It is a shame you never lived in my house. That place was and probably still is very haunted, I moved out years ago. The ghost was cool though for the most part. Although he used to play the piano really freaking loud at like midnight or one AM every so often. It would last like five minutes to, it always got so cold no matter how hot it was. Just for the record we didn't own a piano, nobody was playing piano music. Everyone was asleep by like 10 o clock always, the piano woke us all up though every time. We didn't really have AC so when it suddenly dropped 60 degrees in the middle of August when it's 80 something degrees out its a little bit of an eyebrow raiser. Also a grandfather clock used to go off almost every night as well, that was pretty loud to. We didn't even own a clock that made any form of noise at any point unless it was an alarm clock. The ghost did other things as well but I wont go into it. I'm sure most of you that don't believe in ghosts will write me off and say whatever you want. Really I don't care if you don't believe me. I just wanted to share my story. As for Demons, I believe they exist as well.
Well that's the problem. We didn't live in your house. There's no way of us knowing whether or not what you are saying is true, or whether or not you even remembered events correctly.
Let's assume your story IS true (big assumption). Is it possible, just, slightly possible, that someone crept downstairs and banged on the keyboard? You assume everyone was asleep by 10, but it's not as if someone couldn't have woken up. As for the clock - again, maybe it wasn't from your house. If you slept with the window open, you can hear sounds from outside. Again, I don't know - I wasn't in your house and I don't know if there were any houses near by. As for a drop in temperature... I don't know where you live so I can't offer any theories.
Again, my point is that a lot of people say that there are ghosts, but their evidence is really weak. A few odd sounds in the night doesn't classify as "good" proof. The sound could have come from elsewhere. Someone could have been making it as a prank. You might have imagined it. A neighbour could be responsible. I'm not saying it was any of those things, but those are some possibilities.
It seems to me that a lot of people want to believe in Ghosts, and so they lock in the assumption that whatever they heard/saw was due to a ghost. If you want to be sceptical, always ask yourself "could it have possibly been anything else"? If you thought there was a ghost playing the piano every night at midnight or 1 am, did you stay up at night to see it? Did you try to investigate where the sound was coming from? If you didn't, you can't say it was a ghost, because you made no effort to explore, or to investigate.
I have been in "haunted houses" - I was in England for a year and the house we were in apparently had a woman drown in the tub. My mother, again, claims she saw a Ghost or heard the taps running. I never saw anything or heard anything.