Here's mine if you are interested:

When I was a kid my parents used to go Rally championships, 8 times a year, for the whole weekend. My father still does. Me and my sister were left alone for the weekend, they prepared food for two days and our grandmother who lives in another house in our lot made food for sundays. My sister is two and half years older than me and obviously, she went out to party. Nearly every time. That meant that I was basically alone for the whole weekend. Side note: we had a big german shepherd that was a guard dog and was always sleeping right next to the entrance door (on the outside, he wasn't allowed in).

Me and my sister had upstairs for ourselves, 2 rooms, bathroom, toilet and a living room. The stairs were next to the entrance to the house. And my PC was next to the stairs. That meant if someone came home, I could hear them.

At that time our door was an older one, one of with an old key like this, so opening the door was quite loud. And we had an outer door with a new keyhole that wast loud.

Here comes the creepy part. I spent all weekend on the pc, playing all night and listening to music on speakers. But every night around the same time I heard someone putting the key in the lock and opening the door. Which was impossible, because the outer door was still locked and the inner door had my key in it.

But for years, every night when I was alone for those weekends I heard someone put the key in the lock and turn it and open the door. A few times I rushed down to see if I am being pranked by my sister, but the outer door was still locked (had window on the inner door) and the noise stopped as I touched the stairs.

Weird. No it wasn't the music, and no I wasn't hallucinating.