The worst toilet I ever saw was in China, but at 5000 meters in Sichuan, it was two slippery two by fours that you had to straddle on over a big open pit (don't slip or lose balance!).
Yep, somewhere between Chengdu and Siguniang (4 sisters) if I remember correctly (it could have been on a later leg on to daocheng, but I think it was really early in our trip). You get into Tibetan areas very quickly if you go west from Chengdu, if you are looking for some interesting touring in China, you could do a lot worse than that area. Today the roads are much better and you avoid really high pass driving with lots of tunnels.
My favorite was a place in Chinatown with a curtain for privacy. Outside a couple of guys where killing a seemingly limitless collection of lives chickens.
This one was incredibly nasty, and smelly (mostly from piss, I should say). In Brooklyn, if I remember correctly, with the Manhattan skyline in view. It was a public restroom, and I was part of walking tour group.
Yeah, that sounds about like the one I ran into in Florida. It was on a day walk on the way to St. Petersburg, and the heat just made it all worse. 0/10, not enough water, terrible place. Let alone the pills on the ground.
That was such an awesome trip circa 2005.