Patting multiple empty pockets leads to steadily rising panic…
… especially when you realise that the only “safety measure” is hoping the battery dies before anyone finds it..
(I’d left it on a table in the foyer at work while looking at flyers, where, luckily, it was seen by a secretary who was also looking at flyers. I had it safely back in my pocket within an hour of discovering it was missing. The first thing I did when I got it back was put a screenlock on)