Yes I've seen a ghost twice in my mums house. The first time about 15 years ago a white figure a woman with her back to me. I had woken from a dream and turned the light on and she was gone.
Saw her again 2 years ago this time standing at the bottom of the bed looking right at me an old lady about 80 years old with a soft silk like hat on smiling at me. I turned around to grab my iPhone to get a picture but she just disappeared. I'm not sure what to make of it all as I'm an atheist and the most sceptical person, but I know what I saw.