What is your most inexplicable experience?

I use “inexplicable” rather than “supernatural” because I don’t believe the supernatural can exist. If it exists, it’s natural. It may be inexplicable with our current models, but that doesn’t put it in the realm of “ghosties and ghoulies and long-leggedy beasties.”

My own experience: I lived in a house with what is commonly referred to as “poltergeist” activity. We would often hear boxes slide across the floor in the attic and then bump into walls. It was also in the attic that we’d often hear creaking noises in specific locations, like someone shifting their weight from foot to foot, only to go up and find nothing. One night I got up to use the toilet and found the toilet paper roll unspooling itself onto the floor. It was an old house, and the bedroom doors had glass transoms over them; one day, while I was alone in the house with my door closed, I witnessed the attic door open and then close itself over my transom. I didn’t have the nerve to get up and open my door. One day one of my roommates and I were sitting in her room, discussing the things we had experienced. As we were discussing it, the noises in the attic got louder and louder right above our heads. Finally, the floor lamp sitting beside us tipped itself over and slammed to the floor right between the two of us.

What is the most unusual, inexplicable experience that you have had?