In my current travels to Croatia I was using the bathroom at a cafe and noticed that the men's bathroom has 2 parts. The first part has a urinal and a sink. The door that leads back to the cafe does not have a lock. The second part of the bathroom is the toilet with a lockable door, which leads into the urinal and sink room. From this setup I thought that it was designed as so because if someone just needed to use the urinal they would be able to and not block the toilet.
As I used the bathroom I closed the door leading to the cafe and proceeded the use the urinal. In the middle of my business someone came in and apologized and left. I double checked to see if there was a lock and there was none, and there was no sign that the lock as broken. I checked a few other bathrooms from restaurants and cafes, and the ones that matched layout above didn't have a lock. Am I missing something?