At check-in, I have been wrongly given room keys to rooms that were occupied. Only one of those times was there a naked person freshly out of the shower at the exact time I had just gotten into the room. I was of course apologetic and pulled back the door to get myself back into the hallway — it wasn’t really a hallway but more like a big foyer for the floor — and the naked person made no major fuss about it to my knowledge. [Maybe it helped that I sounded like an American business traveler/tourist in a foreign land.] After going to reception and mentioning the mix-up, I got checked into a room on the same floor. As I was going to my newly assigned room, I ran into the naked person but this time the person was fully dressed. I asked if they had complained and they didn’t think it was a big deal. The person seemed rather flirtatious for having just been walked in while totally undressed in a room where there was an obvious expectation of privacy. It was a Marriott group hotel in an expensive city at the time. If this happened to me, I would have wanted the room comped. I since use the deadbolt/latch in addition to the door’s automatic lock; and I have an on-the-floor door stopper I use anyway, at least for when I’m going into the bathroom or to bed.