I don't think this thread has been done. If it has, sorry.

Anyway, awful topic, but I'm sure we've all had this happen at least once. For me, I was about 11 and just zipped up really quickly. Skin on my penis got caught, and I just went, "OH-MY-GOD!-OH-MY-GOD!" I didn't know what to do, but in a panic I just unzipped really quickly, and to my surprise it came out okay, though my penis was bleeding.

Weird, but this is the first time I've ever told this story.