I was big on Assassins Creed during high school, making the grand decision to take up parkour even though the entire location was a series of low-level buildings laid out on flat, unexciting terrain. Nevertheless, every lunch break I tried emulating Ezio by going outside to attempt wall-runs up the same two ledges over and over again, hoping I can get better with practice (I didn't).When I was in middle school, I was interested in parkour esque maneuvers which meant mostly jumping down stairs and going places I wasn't supposed to. One time when I was in one of those moods, I jumped over the side of a railing and almost landed on a adult's head. I probably wouldn't have heard the end of it if I did so I decided to cut back on it from then on.
On top of being that kind of moron, I was the shy type who didn't like attention; I would hide whenever I hear footsteps, or just stand around pretending nothing was going on if there wasn't a place to duck. Nevertheless, some classmates of mine did see me in the act while I wasn't paying attention. Repeatedly. I only learned this when my little brother told me, years later, that he knew about my old habits because they approached him about the subject. Apparently, they admired me for being the kind of guy who doesn't care what others might think (I am). My little brother said he didn't know how to respond to that.
I didn't either.