You know, the sort of cowardly stupidity (combined with awesome arrogance) described here is pretty run-of-the-mill in today’s schools.
The part that won’t get mentioned much, if at all, is that the principal was apparently so astounded by the 11-year-old’s science project—so baffled, so dazzled, so stunned—that he thought not only was bomb a reasonable interpretation of a motion detector but also, having cleared up his confusion after much expense and hysteria, that counseling was a reasonable suggestion for the child and his family.
Being a bureaucrat, of course, means that it’s never your shortcomings that cause these problems. It’s not that you’re too stupid to have a basic grasp on not just electronics but human nature and current events (quick, name the number of times an eleven-year-old has blown up his school!), nor even that you should handle such a situation to delicately cover-up your ignorance.
No, take it to the mattresses every single time and insist that anyone who makes you feel uncomfortable with your ignorance is probably psychologically disturbed.