Final answer:
Brian described the moose attack as 'insane' in 'Hatchet' due to its unexpected, chaotic, and dangerous nature, highlighting the severity and shock of the experience in the wilderness.
Step-by-step explanation:
In the book Hatchet by Gary Paulsen, the character Brian described the moose attack as "insane" likely due to the unexpected and chaotic nature of the event. The word insane in this context serves to convey the extreme, frenzied, and seemingly irrational behavior of the moose, which is contrary to Brian's typical experiences with wildlife. The attack was highly stressful and dangerous, and as a solitary survivor in the wilderness, Brian's use of such a strong descriptor emphasizes the severity and shock of the situation. For Brian, the experience would have been both terrifying and surreal, contributing to his perception of the event as "insane".