What is the creepiest explainable, non-paranormal story or event that happened to you?

I was at my friends house after a cold winter night out at the bars. So it was around 3AM. My friend was living in a super sketchy part of town at the time. The rent was cheap and the apartment was spacious, but you wouldn't want to be walking around late at night. Anyways, the time comes when I say good bye and I go outside to drive home. My car was an older car that had faulty locks. Sometimes they would freeze in cold weather and refuse to unlock so I usually just left the driver door unlocked and made sure not to leave any valuable things in side. My car is not parked far from his apartment, but I still feel a bit on edge as I walk to it because of the reputation of the neighborhood. I check around as a hustle over to my car to ensure no suspicious looking people are around. I open the door, go to sit down, and realize to my horror that there is somebody in the driver seat. I almost have a heart attack and scream at the guy "get the fuck out!" I don't know if he wanted to rob me or what, but he got out right away. He proceeded to apologize and say that he is homeless and had no where to go. I was shaken up at this point and just got in a sped off. Suddenly, I realize my work jacket in the front seat is gone. So I hit the brakes, put it in reverse, get out of the car and say "Give me back my fucking jacket!" He explains that somebody else was in the car before him and that is how he knew the car was open... Drove home after that and passed out. Woke up the next morning and realized how shitty my car must be that it looks like a suitable place for a homeless man to sleep.

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