Abstract: A guard for preventing activation of an on/off switch that provides a source of power to operate a personal electric device, such as an electric toothbrush, an electric razor, a trimmer, and the like. The guard includes a flexible cylindrical body having a thickness defined by an inner surface and an outer surface. The guard includes a flexible opening having a first edge and a second edge that substantially face each other along an axial direction of the guard. Peripheral ends of the cylindrical body terminate into a first end and a second end. The first end and the second end are aligned concentrically, and substantially perpendicular, to an axis centrally disposed through the cylindrical body of the guard. In use, the guard is adapted to snugly fit over an off/on switch and a portion of the handle of the electric device. The cylindrical body of the guard is sufficiently rigid to prevent an inadvertent activation of the on/off switch of the electric device.