Waste Water while obsessing over Germs

I recently found this serious and interesting sign in the bathroom of a reputable restaurant in San Francisco: "Employees Must Wash Hands etc etc." Towards the end it gets interesting: "Turn off water with paper towel" - read "waste water for 45 seconds while drying hands, turn off tap with paper towel to protect yourself from disgusting and dangerous germs that may be stuck on the tap handle and then never touch anything again - especially not the door knob to get out of the bathroom."

Oh - and please consider the drought in California and serve your patrons water only upon request.