"But you know this (or at least you ought to). What you may not know is that washing will not make the coliform bacteria go away. They're holed up in the pores of your skin and nothing short of sandblasting--certainly not your morning shower--is going to get them out. Showering merely gets rid of the ones that have strayed onto the surface. The bacteria won't do much harm if they stay put, but when you urinate your fingers come in contact with Mister P. long enough for the coliform bacteria in your pores to hop aboard. Your fingers subsequently touch lots of other infectible items. If you don't wash your hands with soap and water (soap gets rid of the skin oil that the bacteria stick to) . . . hello, Typhoid Mary.

It now dawns on you: jeez, if merely touching my privates is enough to transmit bacteria, it doesn't matter if I pee or not! Just so. Urine itself is actually fairly sterile. Cecil has read reports of it being used during wartime in poor countries as--I'm not making this up--a sort of battlefield Bactine. (U.S. doctors generally blanch at this.) The lesson to draw from this, however, is not that you can go forth dripping (yuck), but rather that just because you didn't pee on your fingers doesn't mean you can skip washing up."

"The purpose of hand washing in the health care setting is to remove or destroy (disinfect) pathogenic microorganisms ("germs") to avoid transmitting them to a patient. The application of water alone is ineffective for cleaning skin because water is unable to remove fats, oils, and proteins, which are components of organic soil. Therefore, removal of microorganisms from skin requires the addition of soaps or detergents to water."