Is it normal that i can't find my dark side?

It's said that everyone has a dark side, and me being the introspective person I am, I've thought long and hard about what could be attributes of mine. Sometimes I get a little too angry or aggravated and might act impulsively or carelessly as a result (driving too fast in the rain, resorting to violence), but I don't see that as being dark. These are very rare instances that I take my impulses too far, and I must be provoked to an extreme (I'll hit you if you hit me first).

I have been attracted to some of the darker things throughout my life such as witchcraft, the paranormal,melancholic music, but I still don't think that constitutes me as dark. In general, I'm a positive and easygoing person.

And I make creepy statements occasionally in a detached sort of way, but that's usually for shock or humor.. Like in middle school we had an assignment to decorate grocery bags promoting things that would help the environment - I drew a depiction of population control. But I wasnt hell bent on the idea, I was just exploring the concept, questioning its validity.

I've never had thoughts of killing people violently like most people I know, I've never had any fascination with medieval torture devices or serial killers and I love everyone, even if they've done me wrong.

I feel like I should find my dark side so that it doesn't surface unannounced. I want to know myself completely, but I don't know how to educate myself on the darker parts of me that are buried in my unconscious mind. I'm not sure whether I have it under control or if I'm a volcano waiting to erupt.

Is it normal to feel the need to uncover the dark things I might be capable of?