Was walking in the grocery store. I was in the wide area between the registers and the food aisles. I carry my wallet in my cargo pants,left front pocket. This guy was walking in the opposite direction on the far side of the aisle near the registers. He was looking around, looked towards me and suddenly he started walking directly towards me. And I mean directly, as I continued to walk he kept altering direction to keep me in front of him. Really unnerving. ( I was expecting a knife in his hands but, they were empty). He got really close. I was about to punch him. Couldn't move away because, now, I was right along one of the food displays. He walked by within about 5 or 6 inches of me. I stopped and muttered , that's too close pal. He continued on and left the store. About 5 or 6 days later, I got a call from my bank about suspicious activity on my card. A purchase I did not make. I had to cancel the card and fill out a form from the bank.
Maybe it was coincidence. Maybe the idea of needing RFID card pouches is silly. They're about .85 cents a piece.
Sorry, to digress from the OP. Yes, those USPS messages that something is wrong with your shipment, please give a whole bunch of personal information , is a scam.