For the Fourth of July weekend, the Dallas Police Department is partnering with Dallas Fire-Rescue -- they're going to ride in patrol cars together -- to strictly enforce the no-no's listed above, especially the part about shooting stuff into the air. It's the first time the two departments have gone to such lengths to keep the skies from raining fire and brimstone (and bullets) on the Fourth."We're going to have a no-tolerance for it," said Dallas Fire Rescue's spokesperson, Lt. Rebecca Mathews