From Redditor u/zushiba:
When I was in high school I worked as a courtesy clerk at Albertsons. People were always telling me that they saw me somewhere in town when I wasn’t there.
One day when I got out of class at the end of school, I had to go straight to work. I wouldn’t get home until just after 9:00 that night.
So I walked in just after 9:00 and said “Hi people” to my mom and my sisters. And they all looked confused. My mom asked me where I was coming from. I said I had been at work. My mom and my older sister both said, no you haven’t. You came in hours ago said “Hi people” and went upstairs.
I said, no I didn’t I hadn’t been home since I left at 7:00 this morning.
So we all 4 went upstairs to my room to see who came home. My door was closed. I usually leave it open.
The light was on and the TV was on. Opened the door, no one there.
But wait. It gets weirder.
In high school we had a secondary school called the Skill Center. It was a place that had a collection of vocational classes you could take. For instance I took TV Broadcasting, web design and Forestry.
One day I was waiting for the bus to leave the Skill Center after my Broadcasting class and a teacher I never met ran up to me and said “Zushiba! You need to come back to class” I had never been in her class. But apparently I had been missing for the last few seasons.
I tried to explain I wasn’t in her class, but she did seem to know who I was. So she took me to the office. Thinking I was ditching. We go in and I tell the office clerk my name and she looks me up, sure enough there I am in Broadcasting just like I said… but there I am, under my step dads last name in her class.
I went by both names, it was a bit confusing but both names were relatively unique. So it’s not like there would have been a random person that looks just like me in her class. It’s just extremely unlikely. “I” had been in her class for the entire semester until I mysteriously stopped showing up. I had turned in work and everything. Even had my god d*** signature on it!
One day this doppelgänger simply stopped showing up. No one ever saw him again.