One of the more mischievous kids in my third grade class was the son of the high school chem teacher. He purchased a chemistry set at the book fair that year. He and another kid took it into the bathroom by the cafeteria and drank a few "experiments" from the kit in the box. They both got violently sick and an ambulance came. I'm really glad I stuck with my Box Car Children collection and Calvin and Hobbes book mark that year.