I have a few stories. When I was a kid I saw (saw right through her and saw the dresser stuff through her) a transparency of who looked to be my Aunt Totsye but at that time she was not dead, she didn't die for another 27 years. Her husband, my Uncle Delbert had sleep apnea so I know what you're talking about there Alf, I was near panicky nearly all night while waiting for him to breathe and snore on the handful of nights I spent there.
In 2000, I was renovating my front room, took the plaster off the lathe on one wall and sheeted it back up then started tackling the evil floor. It was a bad floor, you could not walk on it without shoes for it would give you splinters and enjoy it. I was the only person in my home during this strange event that occurred. I had rented a drum sander and was working with that, needed to use the bathroom, went in the bathroom did my business, flushed etc. exited. A half hour later another bathroom call, so I go in, lift the lid and there is a damn TOAD in the bowl the size of my fist. I cannot tell you how it appeared and I can't believe for a moment it could do the verticals of the sewage line (there is a three foot vertical to the first elbow in the basement straight off the flange) to have climbed up from there, nor could it have fit through from the tank to the bowl. Not a ghost and a fully alive toad, but I was still totally perplexed. My cedar floor turned out looking like beautiful wood glass after 16 coats of poly. Awesome.
I and two of my friends (we all were barely driving age) got chased off out of a small cemetery at night by a pair of "ghost headlights" that I am positive there had been a car approaching behind us (I was sure we were busted was saying go go go from the backseat), but was nowhere to be found a simple moment later. Probably did not help that we were at the 13 sided church's graveyard.
I am also positive I once saw what had to be a UFO but it was not close, very far away, while star watching. Shone as bright as a satellite and was very fast in the sky heading west until it immediately began heading upward. I saw it make a sharp L turn in the sky. No plane can do that, and it was very up there as far as the stars also looked, so I doubt it was a helicopter either. I don't know what it was.
I've ran off from other places due to spooky noises, but I can't know if I was over-reacting or what since I beat feet the hell out of them.