When you have travelled around the world I'm sure that you have come across some toilets that you found a bit....eh...nasty. This is the chance to share your best and worse toilet stories with all of us. I can start :-)
Best experience: I was in the bar at the Burj Al Arab in Dubai (the one in the top wing). This hotel is over the top and it claims to be the only(?) 7 star hotel in the world. Well, the toilet was spotless. Once I had been to the toilet a guy went into make sure that it was as spotless as it was before I went in there...and when I washed my hands a guy was ready to hand me a real towel so that I could wipe my hands :-)
Worse: well, In Beijing we got in touch with a couple of locals and we walked into some narrow streets. We went to a restaurant and I had to go to the loo but there was not a toilet in the place. So this one guy took my out of the restaurant and into the street and all of a sudden he points into a narrow and dark hallway...there was just one light bulb hanging from the ceiling in there. When I walked in there it looked like they had just used a sledgehammer to make a hole in the floor.
I was also on the toilet on a bus in Thailand once. First of all it was tiny so I couldn't stand up straigth (I'm only 5' 10")...and when the bus started moving there was lots of "water" on the floor that was sloshing around.