Canyon Mansfield was walking on the hillside behind his Pocatello, Idaho home with his dog in 2017 when he spotted what looked like a sprinkler head. When he reached down to pick it up, the spring loaded device released a cloud of gas. The poison killed his dog and injured him. The agency had planted M-44s on the public land adjacent to the Mansfield property. Now, the focus of the fight shifts to other land management agencies in the federal government to ban the use of inhumane device. Oregon was the last left coast state to ban their use in 2020.