just unplug the dot if you do not want to use it anymore. The show can handle most things. However, it's been my experience the show does not hear as well as the dot so if all you need it for is to operate the lights, it won't make a difference which one did it. I have two echo devices in the living room and for me, so not matter where I am in the room or what direction I am facing, the command I give will be heard.