Okay Purell a waterless hand cleanser. So my hands need washed before we eat at a restaurant and my wife offers me a squirt of Purell, gives me a squirt and I rub my hands until the Purell "disappears". No towel needed to dry hands, no wet hands....... what happens to the dirt and grime that I should have washed off with good old soap and water? Just doesn't add up for me, also I'm not referring to working in the garden type dirt, but handling money, door knobs, slot machines type dirt. I'm sure it kills the germs but what about the dirt, dust and whatever comes off door knobs and slot machines?