Yes, but it was obvious and I didn’t use equipment. It was in Jan 2020 at an Airbnb “hotel” in Nashville. There were two smoke detectors in the room. One of them was not like the other. I wrapped it in toilet paper. I left it wrapped so the owners knew that I knew, but I didn’t bother reporting it because I rarely used Airbnb and it was a last minute trip. And then the pandemic hit and that was that.

> There were two smoke detectors in the room. One of them was not like the other.

I imagine too that the other was not like the one. ;-)

I found someone with a pen recording me. They left it on the desk, and I took it by mistake. I found it in my kit and realized it was a spy device.... yikes.

Well, not in an AirBnB, but... Already years ago, they found one in the ladies room at work...