Berserk
The berserk individual has tremendous difficulty controlling his feelings of anger and frustration. When confronted with stressful situations, a berserk individual often loses control, lashing out against his transgressors (or whomever he perceives to be a transgressor) with blind rage.
Berserk individuals are increasingly common among the Sabbat; the bloodlust and violence of the sect seems to breed this sort of madness. Additionally, a berserk manner often paves the way to other derangements, as the uncontrollable vampire finds himself ever more often in the thrall of the Beast.
Berserk Cainites suffer a +2 difficulty to their rolls to avoid frenzy.