If you have any kind of evidence that you were ever under the age of 18, don't go looking at it.
For example, I have on one of my hard drives several versions of several websites I created and maintained while I was in high school. I should not have done that. I should definitely not have kept them. And I should especially not be looking at them now, because wow, that's depressing.
Also, I liked crap. And I used smileys to excess. And quoted lyrics ALL THE TIME (okay, so that's not changed too much, but it should have).
I may be a dork now, but I was dork^n back then.