My worst triggers are other people’s mouth noises. I had a huge revelation about this trigger when I realized I have zero problem hearing either of my dogs eat. Their mouth noises are objectively more disgusting than most (though not every) humans. I started REALLY listening to my dogs’ chewing/slobbering noises. Almost dissecting the sounds. There is absolutely part of this that is about the humans afflicting the sound. I think that’s why there is a significant rage response. It’s somehow linked to a primal sense of being wronged somehow.