I feel like most people have one "unexplainable" occurrence in their life at least.
To preface this, I was a middle schooler and we moved, I missed my friends, I had other kids joke about the new house being haunted as we bought the home from an older lady who died at a hospice. I was probably already on edge with all that going on.
REGARDLESS, I still think something uhhh WEIRD happened.
I remember one afternoon having to go to the bathroom, as many humans do, popped a squat, did the deed. I got up, turned around to wash my hands in the sink, turned the faucet on, looked at myself in the mirror and right behind me I see a VIVID vision of a bald headed man with black makeup, hook nose, little bit heavier set, white robes, pale skin smiling at me... I just did not process that at the split second, I looked back down to finish washing my hands. Few seconds later, I had the realization of what I saw, I look back up and in true ghost story fashion, he wasn't there. I remember his face to this day, decades later. He almost looked like Danny DeVito as The Penguin in that 90s Batman movie. I still think about that day sometimes, my only "ghost story".