Okay, I'm ready to whip out another one!
When I was in London in Grade 11, I was laying in bed in my hotel room. My hotel room mate was writing in his journal in the bathroom (or maybe he just told me that's what he was doing!

). I was looking at a chair by the window and a woman in her Sunday best circa around 1800 was sitting in the chair holding a baby. The woman stood up - the baby disappeared - and she walked through the wall. Then I would look back and she would be in the same place holding the baby and the same happened again. It wasn't disturbing, just very intriguing. I wasn't scared at all.