We had a touch lamp that would go on and off by itself til I figured out what it was that was causing this. We would turn the lights on to go out for the evening and come back and the light is off??? Spooked us a few times then I realized that the lamp was on the same circuit as the blower on our propane free standing heater. The small amout of surge when the blower would cycle on/off would be enough to turn the lamp on/off.