Reaction to a dark twist in a short story idea

I just came across an idea for a short story that I posited in August of 2007. Wow, that was surprisingly dark! I think I may have been watching entirely too much Law and Order. I also think that I was trying to be provocative for the sake of provocativeness. Honestly, if done well it wouldn't be a horrible short story, but it might be done mediocre and achieve nothing but shock for the sake of shocking or be a badly written morality tale with a weird kitsch vibe. I'm not sure what I think about it. I was just surprised by its darkness.