I think what we have here is a misunderstanding of the concept of "very angry". Perhaps you haven't felt such a strong anger or cannot imagine being so angry that you could imagine murdering somebody.
Of course, it could be as you allude and I have a tendency that most (a lot? :)) of people don't and that you indeed should stay away from me. Nevertheless, I should add that in my 5 decades of life I've felt this only 1-2 times (the other is so long ago that I'm not sure) and neither of those times led to me acting on it. Why didn't I act on it? A combination of reasons: I knew it would have been ethically wrong; I didn't think I could do it without getting caught and I didn't want to face the consequences of being caught.
