I don't know if it's suppose to be some kind of joke or what.
The toilet is perched on a dais at the top of some rickety stairs.
The prospect of standing to take a piss way up there is totally out of the question so you sit to pee and your feet dangle free.
Some of the steps are missing and you can only see darkness below, perhaps it goes down to the basement or underneath the city.
When you flush the toilet you can hear screams for help.