I think I told this story on a previous incarnation of Raoul's, but I'll tell it again.
I was travelling from singsongbanana (xixiangbana? something like that) back to Kunming on a sleeper bus. The bus pulled up at a toilet. We all got out, stretch legs, some people smoking etc as per usual. There was garbage piled in mounds around the entrance to the toilet. I was dubious. It looked bad from the outside. I pondered whether to go now, or wait until the next stop. I watched as a guy went in, walked quickly and immediately back out, then pissed down the hill instead. Some toilets even the locals can't stand.
I decided to wait until the next stop, got back on the bus and went back to sleep.