> To ancient Romans, the practice of sitting on a shared toilet in an open room full of people was entirely ordinary.

That's a funny thing to say for an American, because, to Europeans, American toilets are much too public: doors don't go to the floor or ceiling, and even "walls" are thin sheets of wood/plastic loosely joined together with huge spaces between them.

It seems, Americans don't trust one another to sit alone in a toilet; I still don't know if it's for security purposes (to check if someone has a heart failure?) or puritanical reasons (make sure people aren't having sex?) but it sure feels strange, and very difficult to get used to when one comes from a different culture.