[meanguy]

That's how similar products work. Some contain batteries to remember state. Some are full duplex and request state / update status. Some even work.

Another fun scenario: somebody crashes into a utility pole near your house, the power flickers, all your lights come on, the ceiling fans spin up 100%, and the ashes from your fireplace are distributed all over your house.

Or the lightning strike. Computer works, internet works, can't turn on any lights.

Visit a home automation forum for these and other tales of nerd homes gone bad.