Around 03/04 - Near the Eiffel tower - walked into a restaurant, asked for the restroom, was sent down the stairs, found the door had one of those things like a gumball machine on it where you put coins in and turn the handle to unlock the door. The urgency I had to go forced me to pay for it, go in the bushes outside (police everywhere), or go in my pants.

I’ve used one in paris. Had to put .50 euro in the coin slot on the door in order to get in and stand over a hole in the floor.