I had a ghost experience once. Of course, it was a dog ghost. We had this dog, Baron, who used to follow me around the house and stick his nose on the back of my leg (dog my steps) as I walked. He got cancer at 3 years old and we put him down. The week after that I was walking through the basement and felt a cold wet nose on my leg, turned around and there was nothing there, my leg was not wet, just nothing. Of course, I don't believe in ghosts, but it was some trick of the brain to make me think he was there.