When I was 10 or so I had a nightmare, one that stuck with me for this long. I didn't think much of it back then, but now I don't want to ignore.
I was playing outside with a friend, a few feet away I noticed a figure, a guy, a teenager, no doubt the more I looked, the more I found.
The guy standing there was me, but older, staring motionless at my younger self, with a tired expression on his face, horror movie ****** style.
As a happy child I thought nothing of it, made some jokes and that was the end. As a depressed teen, though, I grew up to see that exact expression on my face a lot.