But the forest was not a comfortable place for Roz. Jagged rocks and fallen trees and tangled underbrush made it difficult for her to walk. She stumbled along, struggling to keep her balance, until her foot snagged and she toppled over like a piece of timber. It wasn’t a bad fall. No dings, no dents, just dirt. But Roz was programmed to keep herself in good working order, and once she was back on her feet, she immediately began cleaning herself off. Her hands darted around her body, quickly brushing and picking off every speck of dirt. Only when the robot was sparkling again did she continue
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