Moved into a new place, in Poland. Bought a new smart TV, it was a Samsung (kaput after 2 years). Me and my wife decided to have an impromptu singing session just bellowing out 'Hotel, Hotel, Hotel, Hotel, Hotel, Hotel' in a Pitbull (Cuban rapper) style whilst looking for holidays to book.
Within the next 5 minutes, Trivago was on the TV. Now bear in mind I have literally never seen Trivago being advertising on the TV and all of a sudden their catchphrase at the end of the ad got me 'Hotel, Trivago'.
Safe to say me and wife had a few minutes of WTF just staring at the screen then each other. That's when I truly became convinced that everything is listening. Could have been a coincidence though but it was an almighty coincidence to say the least.