I got two...
I had just taken a girl to this party, and we had danced, had a good time, at the time I was still a virgin, and an afc 1st class. We decide to leave and go for a walk in the rain, I hadn't brought an umbrella and basically we got soaked. In the middle of the walk it was really coming down hard and there was a hotel across the road from us and she says,
"Why don't we go in there?"
and I say
"Maybe there's a coffee shop open somewhere?"
she never talks to me now...doh
OMG
Second one was when I was younger about 15, and I'm walking home one day and this totally older chick, perhaps late 20's is in the park with her friend. She did looked kinda of stoned at the time, and she asks me if I want to dance with her. I said "No thanks." because I was all freaked out.