@guerrillarain one time, in 5th grade, I was obsessed with somebody and didn't really understand that those feelings would not be reciprocated. I wrote her several letters, and at one point, even walked into her classroom during lunch to give her a present.
She somehow walked in when I was trying to figure out which desk was hers, and after a few minutes of blathering, gave her the gift and left.
I stopped writing to her and avoided her after that, but the awkwardness haunts me.