Why does lieutenant Carroll point out that insect repellent can be used as a weapon?

Lieutenant Carroll points out that insect repellent can be used as a weapon to highlight the resourcefulness and adaptability required in survival situations. It serves as a reminder that everyday items can be repurposed for defense or offense, emphasizing the need for creativity in combat. This perspective also underscores the harsh realities of warfare, where even mundane objects can become tools for survival or aggression.