The Floor Was Partially Damp
I booked this strange motel in advance for a business trip. The lobby was on the same level as the ground, but the first and only floor was up half a flight of stairs, and the furthest room back was about 400 square feet with no exits or entrances save for some fire exits.
Also, the floor was partially damp. It later dawned on me to wonder why I was put in the room furthest from the entrance to the motel when I had never heard or seen anyone and there were no cars in the parking lot…
Story credit: Reddit / Ceractucus