Definitions of violent all seem to mention physical force but I am looking for a word to say that someone is suddenly exceptionally aggressive or destructive without being physically so. I want to describe a sudden fit of extreme anger that clouds a person's judgement, but I do not want to imply physical force, though they may take some other non-physical extreme or destructive action.
I would like to say something like "they were violent" but without implying the use of physical force.
Better again if the word can help with implying the action is sudden or impulsive and lacking deliberation or thinking things through.