Like this:

You think Japanese washiki toilets are bad today?  Here’s what you would have been doing your business in hundreds of years ago.  

That girl does not look happy, and for good reason: not only does it smell horribly, as any washiki toilet does, and not only is her okole getting all bitten up by mosquitoes (or would be if she had actually taken her pants off), but she is crapping all over the family’s adorable pet aguu in the pit behind her.  Yes, in ancient Okinawa the pigpen and the toilet were one and the same.  See?  There’s the bowl for the aguu‘s food…

This replica of an ancient Okinawan toilet can be found at Kodomonokuni Zoo in Okinawa City.