In 2004, authorities say a teacher and student at a high school in Federal Way, Washington, suffered third-degree burns on their faces, heads, arms and hands due to the experiment. A second student was also burned, though not as extensively.
Article source: https://www.huffpost.com/entry/new-york-student-alonzo-yanes-chemistry-60-million_n_5d1bc134e4b03d611643b0d3