Method and system for deploying an occupant restraint device in a vehicle includes arranging a sensor to detect a rear impact and deploying the occupant restraint device when the sensor detects the rear impact of sufficient magnitude to require deployment of the occupant restraint device to prevent injury to the occupant. This invention includes storing information to memory, conducting an operation on the information, and automatically overwriting the information one or more times with a bit mask. The mobile toy may also include a transmitter having a charging pad for charging of a radio-controlled embodiment of the toy. Therefore, the odor-emitting component is highly sensitive to temperature.