Don’t Leave The Kids Alone
There’s a reason children have teachers and helpers. It’s never a good idea to leave students alone in a classroom, especially a science classroom. After this teacher conducted a series of experiments involving potassium and water, the class clown decided to take advantage of her sudden absence. He didn’t understand measurements or how potassium reacts. So when he placed a large amount of potassium into a bowl, it shattered, exploded, and set off the smoke alarm. Try explaining that one to your parents (Buzzfeed).