Worked in Japan for a year. The female janitors would clean the men's bathroom at any time, usually while many men were using urinals. At a Mountain hut on Mt Fuji, the men's urinal (more like trough) was next to a coed sink with only a 4 ft high divider. Many public bathroom had toilets or urinals easily visible when the doors were open, which were further often propped open. Most interesting experience, by far, was a urinal on the 4th or 5th floor of a high end shopping mall in Yokohama which was 1 ft from a floor to ceiling glass window overlooking the waterfront and a train station bustling with people.

I was pretty entertained by the cultural differences and thought immediately how none of these things would ever happen in the US.