How often does it happen? I take it you are talking about m Kitchen Angel being moved.... it's only happened twice (that I have seen). The first night where I dragged the laptop into the kitchen and the next day while I was washing dishes at the sink. It's not happened since. And as a note, in the time since then, I've had the central heat on full time and not at timed intervals due to the temperatures, and even with the heated air coming through the vents, it still isn't moving. Am looking in there as a double check right now as I am typing this.