Yeah, for me, the rock releasing was (if I can remember correctly) more the result of "curiosity" and "impulse" than anything. Watching the rock fall (if I can also remember correctly) did seem to have some sort of "interesting appeal," as I would wait a while before release them and then just watch as they fell from my hands. Maybe it was some fascination with gravity? I don't really remember.
Also, I think I threw the rocks off in the first place more because they were inappropriately placed on the balcony. For some reason, they just didn't seem best to just "sit there." I remember feeling as though the rocks just needed to be placed in a more appropriate location. Then I'm sure the curiosity and fascination of gravity took over, as I really wanted to see what would happen as the rocks fell from such a great height.
So I'm not really sure what it was, but I sort of got a little OCD with those rocks just "sitting there." I remember feeling bothered by their presence and had to get them out of the way asap (as if they were somehow ruining the aesthetics of the balcony). lol -- Anyway, I so never realized "someone might come walking past -- out of nowhere -- and stand right under the rock's trajectory").
The little girl who incidentally was hit by the rock (with no serious injuries, luckily for me) was basically running with a group of other children around the entire apartment complex, and I suppose they were essentially trying to clear a ten yard dash or something (lol), because I remember hearing yelling and screaming -- as the kids ran underneath -- at the exact same moment I was releasing the rock from my hands. So it was just a really stupid Ne moment in which the most unfortunate series of events seemed to occur all at once. =p Go figure.
I'm not always known for decent forethought in my own actions, as I tend to be very spontaneous, random, and impulsive. Damn Perception! But oddly enough, I'm very quick to point out how other people's actions will inevitably lead to certain outcomes. ..... lol