If you squat on a path, you'll get boils on your backside, conveying a warning about laziness or neglect. It suggests that ignoring responsibilities or not taking proper action can lead to negative consequences. The saying emphasizes the importance of being proactive and attentive to avoid problems in life.
This quote from Nancy Farmer's book highlights the value of diligence and awareness in everyday life. It encourages people to stay active and responsible to prevent difficulties or discomfort that may arise from neglect, symbolized here by the humorous image of boils resulting from idleness.