These happened between junior middle school and junior high. All involved girls.
1) A girl from my yard invited me to her birthday. At her house, I got quickly bored with the other kids and decided to start adding salt to the sodas, and then adding sugar to neutralize the salt. To my surprise the taste was vile. Anyway, after a bit of that, the girl's mom caught me in the corridor tying my shoes. "Leaving already?" she asked with surprise. "Why?"
"This is boring." I responded.
Never got invited again.
2) I read the class a lecture on programmable calculators and the exciting future of computing. It didn't go terribly, and so I was flying on the wings of non-failure. After that class, I came up to a girl I liked, in the school corridor, and asked her if she would like to hear more about programmable calculators. She smiled mischievously and said "yes". We agreed to meet under a staircase a couple of classes later.
When we did finally meet, I watched the anticipatory smile slowly disappear from her face, as I proceeded to read her a brand new lecture on programmable calculators. After a minute of that, a bunch of other girls from our class ran down the stairs, laughing, past us. They were eavesdropping.
3) A girl excitedly told me how she and another girl had a bit of a crush on me and were jealous of each other. It all fell on deaf ears. Then the programmable calculator lecture happened (above) and this girl figured it out. She said she had the magazines at her house which had code for programmable calculator games.
I remember ruffling through the magazines with excitement as she kept talking my ears off about erm, I suppose, in retrospect, she was flirting.
The magazines were fascinating.
She stopped talking to me after that. Permanently.
4) I finally developed a real crush on a girl, who knew it, and therefore used it as an opportunity to toy with me. We had a few phone conversations, where I quickly proposed my love to her, but she didn't stop talking to me. She just said those were very serious words, not to be used lightly. In retrospect, she seemed to understand my immaturity and didn't use it to mock me.
Much.
During one of our phone exchanges, she asked me what I thought of a girl she always hung around with. I honestly responded that her friend was pretty but not beautiful like she was.
There was a loud thud on the other end of the line. Turns out that girl was at her house, listening in to the conversation, and she fell off the chair.