I've mostly led a lucky life, with a few blips here and there.
I'll relate the weirdest one.
Now, to give the background, I was home-educated, and didn't know anything about sex except the biological mechanics until I was 15. Very important detail.
When I was 12, I was on my own in a supermarket queue one particular day. There was a man behind me, who kept pressing his crotch to my bottom. When I moved forward in the queue, so did he, and he regained his position against my bottom.
At the time, I simply had no idea that there could be a sexual dimension to his actions. I thought it was odd, and thought he must be doing it by accident. I just pretended it wasn't happening, in the same way I would have done if he'd been repeatedly stepping on my foot, because I didn't want to embarrass him. I really wish I'd known about sexual activity back then.