Fear of heights- no mountain climbing for a Sim with that, and especially no skiing. Same goes for the mountain climber exercise equipment with flames.
Fear of the dark and the light, fear of water, hates the outdoors, fear of normal Sims (because they can cure our fellow occults), fear of the Strangerville plague, fear of being spotted, fear of looking weak- gives one a reason to get into fights with Temperance, rampaging werewolves, and other fiends, fear of heat/cold, cowardly in general- who is scared of everything, but gets very creative when frightened- there's a big, hairy thing in the basement!... oh, wait, I dropped a sock and stepped on it.