 What is the most likely explanation for why Kolin's anger is so extreme?
Despite sour feelings for the space service of Haurtoz, steward Peter Kolin had to admit that casualties might have been far worse. "Since the crew will be on emergency watches repairing the damage," announced the Chief in clipped, aggressive tones, "I have volunteered my section for preliminary scouting, as is suitable. It may be useful to discover temporary sources in this area of natural foods." Lack of complete loyalty to the state was likely to result in a siege of treatment that left the subject suitably "re-personalized." "You will scout in five details of three persons each," Chief Slichow said. The maintenance of a proper viewpoint was a necessity if the Planetary State were to survive the hostile plots of Earth and the latter's decadent colonies. Kolin found himself in a group with Jak Ammet, a third cook, and Eva Yrtok, powdered foods storekeeper. Chief Slichow emphasized that the keepers of rations could hardly, in an emergency, give even the appearance of favoring themselves in regard to food. Ammet followed, and Kolin brought up the rear. To reach their assigned sector, they had to climb a forbidding ridge of rock within half a kilometer. For all Kolin could tell, he and the others were isolated in a world bounded by the rocky ridge behind them and a semi-circle of damp trees and bushes several hundred meters away. "Be a job to find anything edible here," grunted Ammet, and Kolin agreed.
 He had been holding in anger and his captain's reaction was the last straw.
 He is known to be irritable and have mood swings.  He had been holding in anger and his captain's reaction was the last straw.  He was under the effects of the purple berries.  His mind is being controlled by Ashlew.