BookBarbarian
Expert Long Rester
Getting mad doesn't equate to 'raging', everyone gets mad. When I see 'rage' I think berserker and Conan was never a berserker, my opinion.
I'm in the camp where Rage doesn't have to be berserking, as has been mentioned frenzy does a great job of that. To me Rage can easily be a Primal Survival instinct, primal savagery a civilized person would never experience, a battle fury, a drug induced state, possession by ancestral spirits.
Of course that is just my opinion. It's no more valid or invalid than yours.