I remember when I was in kindergarten we had a trough urinal
like that one.
One day I was playing on the playground with some friends, mostly girls, and I rushed in to use the bathroom and they swept in behind me.
The girls thought the urinal was a big sink, a very low sink.
The urinal had a small pipe along the top that continually dripped water to keep things fresh. One girl was trying to get her hands wet using that while complaining is was so stupid cause it was on the ground and no soap...lol
MUCH scrubbing and screeching ensued when I told her “that’s where boys pee” I’d love to have video of that... would be a hoot on youtube.