Is it normal that i feel like just destroying everything, all the time?

I've gone through some...things...that are probably not normal, not even on this site. (IE, I grew up believing that if a will always equated to a way, then my brother with Asberger's was going to conquer the world and gruesomely execute me.) And in my teen years, I wrote stories. Many, many stories. Slowly I noticed my stories leaning more and more towards "main character goes insane and blows up everything," and now, whenever I get...triggered, I guess, it's the best word for it...whenever I get triggered by say, someone being infuriating, I get an almost overwhelming desire to just go "Screw it" and shoot everyone there. (This is why I don't trust myself enough to get a firearm.) No, it's not just coworker annoyance, I actually catch my fingers twitching to where I would put a gun holster if I had one. I don't think it's normal, but heh, I've never been normal. Am I alone, though?