So since the city provides the sewers and sewage treatment facilities, and water is a scarce commodity and the government is ultimately responsible for public health and safety, Mayor Bloomberg or the next Liberal Fascist has the right to compel you to wipe with the correct number of squares and volume of water for your flush.
Heh, ok...
Lets turn this on its head. Hypothetically, suppose water BECOMES really scarce. The sewers are filling up due to increased production and population, and the sewage treatment workers are (literally) up to their necks in their work :) Public health is at risk, there are fears of an outbreak of cholera and similar diseases. How then would you suggest solving such a problem?
Despite the humor, I’m genuinely interested here.