I am more appalled by the sectionalized "test" prices. If you breakdown it seems to be like this scenario,

Go to public toilet,

1. You want to shit
2. Person manning the door ask you want to shit or pee (charge money)
3. Suggest you take tissue (charge money)
3. Ask you how long duration (Charge money)
4. Ask you want to use tissue or water to clean(charge money)
5. Ask you if you use water basin? (chare money)
6. Ask if you use the hand dryer, (Charge money)

Then end up you could have just shitted at another place and not here.