the whole shit in the butthole thing may very well be true...I GUESS... but the fact of the matter is that there's more than meets the ol' brown eye. For instance, I live near a very dark and murky river, which happens to be one of the cleanest rivers in the country, as far as actual contaminants and harmful bacteria and chemicals. Toilet water is generally cleaner than tap water, despite what our instincts would tell us. And so licking a small child's butthole isn't as bad as it would seem; medically or physically.