Anecdotal but I have had an echo dot for only about 2 weeks and already it has "woken" when nobody was talking to it. It's very disconcerting, as you don't real

Anecdotal but I have had an echo dot for only about 2 weeks and already it has "woken" when nobody was talking to it. It's very disconcerting, as you don't realize that it's listening as it parses some conversation that was never meant for it and then suddenly interjects with some non-sequitur. Once was when an actual person was speaking and another time was when the TV show 'The Sopranos' was playing in the room. In the latter case, I rewound the show several times and it triggered on the same phrase multiple times (and the character was not saying anything that sounded like Alexa, at least to me)