True story. I'm in the 9th grade. I've always been a few grades ahead, in math, so in the 9th grade, I was taking an advanced math class, with all seniors and juniors (for the Brits -- seniors and juniors are 12th and 11th grade, respectively). Anyway, the hottest girl in school sat in front of me. I had the biggest crush on her, ever. We're months into the class and I've never uttered a word to her, nor her to me.
Then, one day she asks me what time it was. I was so shocked that she was talking to me that all I could do was stutter a few nonsensical murmers, something like, "Iba, ameebe, uhh." She laughed and walked away, and we never spoke again.
Not a rejection, per se, but same kind of thing.