One time in computer lab in... 7th grade? I was at the teachers computer in front because she liked me and such, and there's this kid in the aisle perpindicular to me talking to me. He's been talking to me for several minutes, when I notice a chill breeze in my groin area.
I look down and my dick POPPED OUT OF MY ZIPPER, half hard, and this kid hasn't even NOTICED.
I discretely put it away and continue talking.
At least I don't think he noticed...
But that shit DID happen. Now that I think of it, I handled it really well by NOT freaking out or locking up or anything.