That's a very good point and those hand dryers remind me of the other elements of the public restroom experience along the interstates these days. The whole water management system done with sensors doesn't work very well. Sink faucets are often difficult to activate. But the toilets are especially problematic. If you move around a little to adjust your clothing or whatever you have to do, those darned things are flushing themselves five or six times or more before you can escape their presence. That's not exactly saving water.
