I've lost track of the times our family has had a conversation about something and then started seeing Google ads about it pop up on our devices a short time later. And I am not talking about looking something up online triggering a pop up ad, but a private conversation in our home. We have no Alexa or Echo type devices in our home - just cell phones, lap tops, and PC's.
I've told this story on here before, but it bears repeating. A couple of years ago we were staying in a Copper Creek 2BR unit. The hairdryer in the master bath was basically useless - it had very little power. Our son was staying in the 2nd BR and never uses a hairdryer. I walked into the living room and told him I was swapping out hairdryers as ours didn't work very well.
A short time later there was a knock on the door. A CM asked if we needed anything. I told him, no we're good. He then asked me if I was sure, and whether there was something wrong in our bathroom. I thanked him, but again told him we were fine and he finally left. I turned around and told my son to unplug the Hey Disney right now!
They have always been listening. We aren't currently plotting anything nefarious (that I know of anyway

), so I don't lose any sleep over it. Still, it's a bit creepy to think about.