Sacred Haven of Debauchery

I know of several cases where firecrackers caused a school toilet to explode, exploded in a garbage chute, or exploded under the chair of a sleeping store security guard. In the first case, the toilet was completely destroyed, in the second, a fire broke out in the building, but it was quickly contained, and in the third, the security guard was hospitalized. By the way, in all cases, the perpetrators were not caught and punished.