Excellent move Burger King, I thoroughly enjoyed reading about your commercial that activated some Google Home Devices: http://www.huffingtonpost.com/entry/burger-king-launches-ad-on-google-home_us_58ee23dfe4b0c89f912307f9. The strategy was clever and made good use of the tools at hand.
I think activities like this are truly the only way some customers are going to understand the potential side effects of having digital assistants in the home and having them on all the time.
If you have a digital assistant in your home, take precautions now if you can to avoid unanticipated outcomes.
Even something as simple as your old answering machine has now become an ideal portal into your home for prank callers to call and leave commands for ordering all kinds of goodies for you without your knowledge or controlling various electronics within the home.