Perhaps， the skeptics said， Sam was secretly signaling to Jim. Although none of Sam' s friends and associates questioned his integrity， knowing him to be a plain-speaking man who wouldn' t dream of deceiving others， one woman decided to test this theory. She had the clever idea to write an instruction for Jim in shorthand； which Sam did not understand. When Sam showed Jim the paper on which the instruction was written， and told him to do whatever it said， Jim went over to a certain man. The woman shouted， "He' s doing it！" Then she explained that the instruction was， "Show us the man with rolled socks."