(or anything homemade with electronics is a bomb) An 11 year old at Millennial Tech Magnet School in San Diego, actually used his mind and created something. Using an empty soda bottle as a structure, he assembled components to create a motion detector. He brought it to school to show his friends (inventing something at a Tech magnet school - horrors!). A vice principal noted the interest and of course did the prudent thing. He assumed the child had determined a way to explode air with only electronics in an otherwise empty bottle and called the police (evacuated the school).