QotD: Ghost Stories

Do you believe in ghosts? If so, have you ever seen one?

Yes, I do believe in ghosts and that's why many people think I'm a bit crazy, excluding the ones who believe in ghosts, too. I actually haven't seen a ghost, but I have many other experiences and I'll tell you the one that is the most important to me.
The year was probably the late 2006, about two years after our cat's mercy killing (and Masa alias "Matti-herra, Mr. Matti" was three years older than me, by the way). One morning I went to this room to get my fleece jacket. Then I saw cat hair (they were just like Masa's hair) on the fleece jacket (it was on a sofa) and when I touched the jacket, I realized it was warm, so I guess Masa had slept on it.

This is a very important experience to me and I like telling it, but I don't tell it to everyone, just to the wise people only. And the story actually touches me every time I think of it and it's one of the most amazing things ever happened to me.