Sure I have, quite a few times. Nothing I have, though, tops what a few people in my family have seen. I remember my mom telling me about when she was a child, and the house they lived in was where an old man had died. Nothing happened until my grandfather had torn down the back porch. She said that there were times where she'd be in bed and the windows would open and shut on their own, she would be the only one home and would hear laughter coming from where the back porch used to be, and she wouldn't see anyone outside. Lights would turn on and shut off on their own. Doors would open and close on their own. Up in their attic, she and her sister were pushed against the wall by something, and there was nothing there. She said that, finally, after living there for a year, the whole family got sick of it and moved out. She said that as they were getting in the car, she looked up at the bedroom window on the second floor and watched as it rose up by itself, the light switched on, and there was some kind of black human shaped object staring back at her. Not long after, it burned down. Now, is some of that explainable? Oh certainly, electrical wiring, house settling, things like that, but some of it would have had me doing my best impression of Usain Bolt.