while in her present time , it was already rare that you had to touch anything in a public restroom , these toilets automatically covered themselves before flushing ( she imagined that technology had ruined the old flush-to-cover-up-a-noisy-bathroom-visit trick ) , these faucets measured the water to the precise temperature to help destroy germs , toilet tissue rolled itself for you to what she imagined were leed-certified rations , and the hand dryers not only provided hurricane force winds , but were as quiet as a ceiling fan .