A Laugh-Out-Loud School Story Full of Silly Adults! A.J. thinks the tech teacher is just plain weird — but when he saves the day, Mr. Harrison isn't so embarrassing anymore! The tech teacher is awfully strange, even though he can fix or build anything — like a solar-powered umbrella. But A.J.'s feelings about his teacher change when the lights go out in the whole school and everyone is left sitting in the dark. Only Mr. Harrison's crazy thinking can save the day!