on a loaded moraine slope you walk like a cat. Your aim is to dislodge nothing, not even a grain of quartz. You move tenderly. You advance with soft tread, placing the balls of the feet first, not heel-jabbing with a stiff leg. You never pull on a rock with your hand; instead, you press down with your palm or fingertips so that any force you apply confirms the rock in its location. You never put your full foot-weight on a boulder without testing it first. You never move when someone is directly below you on the fall-line. You never put your foot or your arm into a gap between rocks, in case
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