Sidewalk chalk: The tools of a criminal? Mark Wilson/Getty Images hide caption itoggle caption Mark Wilson/Getty Images The Two-Way 13 Years In Jail For Writing On A Sidewalk With Chalk? June 30, 2013 In San Diego, 40-year-old Jeffrey Olson is on trial for writing messages such as "No Thanks, Big Banks," on sidewalks. He was protesting the financial mess some banks got into and the federal bailout that followed. Should be be prosecuted for expressing himself in erasable ways that weren't obscene?