FWIW, Salemicus::anger ("how dare you!") and annoyance feel slightly but not very different to my System 1, much more similar to each other than, say, the various feelings that English labels as "love", and I don't normally feel the need of using different words for the two unless I want to be pedantic. I realize that anger is supposed to be what "They offered me a lousy offer in this Ultimatum game so I'd better turn it down even if I CDT::will be worse off otherwise people TDT::would continue to make me similarly lousy offers" feels from the inside, but my System 1 has only a vague understanding of that, let alone of the fact that unanimate objects aren't actually playing Ultimatum with me (and I can't be alone on this last point otherwise no-one would have ever hypothesised that lightning came from Zeus), but YMMV. BTW, are you two native English speakers? (FTR I'm not.) This might be a case of languages labeling feeling-space differently, rather than or as well as people's feeling-spaces being different.

My intuitive answer would be yes, but now I am realizing that for me sadness or fear is probably much closer to anger than for you. In my mind they all are "feel bad, be unhappy and express it too". I suppose if we define anger in a very granular and precise way and not just as a general bad feeling, "being mad at" but more like, giving a long rant, it can only apply to humans because I will swear to the rain but only briefly, to let steam out, I will not give a long angry rant to it. I will be "mad at it", but not angry in that social sense that is clear. Halfway conceded: anger in the very granular sense only applies to humans. But. Can you think of a counter-example where 1) humans violate our expectations 2) but it is no a social rule or cohesion violation, and do we get angry or not? This is very tricky, because our expectations are, of course, based on social rules! Usually. Now I am searching for a case when not.