Odd as it sounds at first blush, it made sense when he explained it. I never let water in my boots on purpose so the next time it happens, I will take my boots off assuming I have wool socks on. In a related aspect of this, if I am going into deep snow I wear gators so as to keep snow from falling down my boots and melting. For the warm climate folks here, 32 degree fahrenheit water will very quickly numb your feet or hands. It is both painful and dangerous.