The things I’ve missed out on, never having traveled more than 30miles from the US border as an adult. For example, Nelson Minar brings this report from France.

the craziest appliance in my apartment is one we have no name for in the US, so I’m calling it le moulin à merde. It serves the same function as a garbage disposal only instead of being in the kitchen sink it’s in the toilet. Old buildings have awkward plumbing, in this case a thin little pipe coming out of the toilet instead of a 2 inch sewer pipe. So you have a grinder. It seems to work but it’s noisy as hell. Ken and I agreed to not flush after late night micturation, but simply adding to the water level is enough to start it chewing.
(link)

I can’t imagine that makes potty training any easier