It was difficult to move in this way without making the brush wiggle, which would give Jones a way to track where he was. And in any case he was leaving a mashed-down trail that Jones could simply follow until he had a clear shot. Richard, looking behind him, saw that trail and noted its embarrassing width and, even here, heard the voice of a Furious Muse reminding him that he needed to lose weight. Zigzagging would break the trail up into short segments and make it more difficult for Jones to just drill him in his fat ass while strolling along in his wake. But it would also slow him down. So he very much needed to find proper cover and to take shelter there and force Jones to expose himself.