"Imagine for a moment that you check in and get your room keys as normal. Go up to your room with your bags and then try to unlock your room. The door opens, but the chain is engaged. Hmm, that's weird. Oh, there are already people in this room, and that is a horrible experience for both the people trying to enter and the people who were in bed. So you go back to the front desk and "Oh, that room was supposed to go to you, but the other front desk person gave it away. heres a different room." So you go to the second room, and as it's been a long day, go to take a shower, but oh wait, the towels are already dirty. A ridiculous experience from start to finish, we will not be returning."