Drolag is Barak's bosun. He suffered a broken leg in a tavern brawl in his past. The leg was extraordinarily sensitive to weather changes, such that Drolag was able to predict the onset of bad weather with uncanny accuracy. His shipmates always watched him very closely.
When Drolag winced with every step, they began searching the horizons for oncoming storms; when he limped, they shortened sail and began rigging safety lines; and when he fell down with a surprised cry of pain, they immediately battened down all hatches, rigged the sea anchor, and went below. Drolag had turned a temporary inconvenience into a lifetime career. He always commanded top pay, and nobody ever expected him to do any real work. All he had to do was pace the deck where everybody could watch him. The miraculous leg even made it possible for him to predict with some degree of certainty just exactly when a given storm would hit. -- The Seeress of Kell