Some surgery so called rules are just stupid and wrong - like no drinking water after midnight - no matter when surgery is scheduled - so the same instruction whether you were scheduled for 6 am or 1 pm which makes no sense at all. When I had my replacement surgery the materials all said that about water and I looked and researched and saw that was no longer really the case (in fact - one surgeon I almost used had instructions to drink 2 bottles of electrolyte drink (gatorade and such) in 2 - 4 hours before surgery) -so I asked the anesthesia guy when he called and said I wanted to do that because of the benefits and he said okay and I did it. But I did do the two shower thing with their special soap =the night before, newly washed sheets the night before, and another shower the morning of surgery as well as the wipes at the hospital.