Un/familiar Coat

It was my first working day in a large office house. I had left my coat in a public coat rack in the main lobby. After my workday ended, I went to the lobby and put on the only coat there was hanging in the rack. The coat felt wrong. I noticed it was not mine and put it back. There was a receptionist sitting behind his desk. I went to tell him that my coat had been stolen. He asked, what did you have in your pockets? I remembered that I had a roll of dog poo bags. Next, we checked out the leftover coat to get a clue of its owner, and found dog poo bags in one of the pockets. After all, it was my coat, I just did not recognize it at first because it had felt so weird when I tried it on.