A toot's got me wondering about the nature of consent in a specific way; I won't ever have an Alexa or anything like it, and maybe you won't either; but other people will.
And now I'm thinking, if you have one of these lumps of spyware in your home, should you be *required* to offer a formal warning to any visitors? I think so; you're required to place CCTV warnings if you run CCTV, and if anything systems like Alexa are more invasive, not less.
The data from a CCTV system might never leave the premises; the data from these "assistants" goes **directly** to servers outside either your *or* your host's control, where your voice may be datamined for any damned purpose the server owners choose.
Don't feel bad about saying "I don't wanna come over, you've got an Alexa running." It's not paranoia to be creeped out by AIs (or persons) unknown listening to your private conversations. It's *normal*. You don't *need* anything to "hide" for you desire not to *share* to be valid.