geez... this is a kind of unfair question. I have a ton of them.
Well, here is one that I really remember. I happened back when I was about 16 years old. I was on my prom date, and we went out to a Chinese restaurant. We were sitting beside a window. And lucky me, it was the window with that neon open sign on it.
As we were sitting their talking. I was getting a little nervous. So I decided to touch the light.
**note to everybody: I never said that I was the brightest kid on the block. As my hand touched it, I was expecting it to be hot. But it wasn't hot, as a matter of fact it wasn't even cold. I didn't even get to feel the temperature of it, because once I touched it, it shocked the crap out of me. Right in front of my date. She just stared at me in amazement that I would do something like that. (hey, I'm a guy)
Once I pulled away from the light, she just started to laugh at me. It wasn't a bad laugh, it was one of those laughs that girls give to guys that they find cute and you can't do anything wrong no matter how stupid it is.
But it was all good in the end. We ended up dating after prom. Even after I made an idiot out of myself.