I read that 9w8's are more likely to express their anger physically than 9w1's, and 9w1's are more likely to express it by yelling. If that's true, I probably side more with 9w8 on this one. I used to get so frustrated I would throw things when I was a little kid. And even now, when I get extremely angry, I first get away from the person who's making me angry, then I start pacing around in my room because I can't just sit and be angry. I don't think I've ever yelled at anyone, though. The closest I ever come is talking angrily, but not necessarily loudly.
Ah ha! I hadn't thought of it that way in terms of the 8w, but now that I think about it, is very true for me. My mom said when I was really little (like 2 or 3), I would hit my older sister when I was mad.

When I got a little older, instead of hitting her, I would fantasize about hitting her and then maybe go throw something instead. Even to this day, when I'm extremely angry at someone, I fantasize about how much I'd like to kick them in the head or punch them in the face, and then go do some exercise to get my aggression out.

I thought everyone did that, but maybe 8ers do it more, haha.
I hadn't thought of that until you brought it up, because it's so rare that I get angry. For little things, I can just curse and laugh it off, and I'm done. And actually because of that, I have to be careful around people who get angry easily at little things, because I don't see it coming and don't understand it. It's a serious blind spot of mine.
I'm rarely assertive, though I think I could be if I needed to be. I'm not so passive that I won't say what needs to be said. I've exploded before a couple times, but much more often I'm passive aggressive. My parents have told me I tend to drag my heels when I don't want to do something...and it's true.
I'm usually assertive unless there's a good reason I'm afraid to be. That's when I run into problems and get all conflicted about what to do. I don't think I'm passive aggressive, but I could be wrong. I also drag my heels when I don't want to do something.