Two zoology students were conducting an experiment with a hapless spider. They wanted to see what would happen if they cut off its eight legs, two at a time. So they did. They cut off the first two and said, “Walk!” and the spider did. They did the same until only two legs remained, each time ordering the spider to walk. And walk the spider did. When the last legs were removed, they asked it to walk and it didn’t. They shouted at the spider to walk, but it didn’t budge. So they concluded that when all the eight legs were cut off, the spider turned deaf