Those who survived the ordeal were tattooed with the angel of madness and carried around phials of vinegar that had been infused with the fly agaric mushroom. Once it was consumed, usually directly before battle, they entered a state of hyper-arousal where they were unable to tell friend from foe and attacked on almost any stimulus. Use of this vinegar was governed by strict rules and they were forbidden to take it when they would be fighting in close proximity with their comrades.
