Inverter: Ooops

Try it on one of the employees or their supervisor? Or was that too many witnesses? And would they even notice? He wondered. He aimed the device at the manager curiously when suddenly, someone pushed past him, jostling his arm. The device went off and hit John, and then went flying. John felt dizzy. Since he knew he'd been hit by the device, he wasn't as oblivious as some, but he was having trouble assembling his thoughts clearly. A giant suddenly grabbed his arm. "Does anyone know whose kid this is?" As the little boy was suddenly pulled away, the device lay where it had landed, until it was picked up.