The sock conundrum

First find two socks the same. Then ask the subject to raise one foot. Problem! He can't raise the foot without losing balance. Suggest he grabs the towel rail. Is the towel rail strong enough? Hope so. Foot rises eight inches. Roll sock and insert toes into sock while subject wobbles and shrieks. That ok? No, heel doesn't feel right. wiggle heel, wrong way! Wiggle reversed, success. Repeat for foot number 2.