An article in Grist, "Smart meters save energy, water, and dollars," describes a pilot program in which smart water meters take hourly readings and participants can check each other's consumption on a social networking site. Then the author adds, "Nothing like a little peer pressure to get you to turn off the tap." Yes, imagine your nosy neighbor seeing the spike in your water usage chart whenever you water your plants, make ice cubes, or flush your commode when you get up to pee at two AM every night.