It goes back to Sigmund Freud. Sigmund Freud believed people who lived in a "perfect" world were easily let down because of their own high expections of people. Have you ever heard the expression some is ****? SF was a scientist who reasoned during the developmental stages of childhood, some children will develop a serious and unreasonable guilt associated with using the bathroom. Those children view the act of passing bowel as unnatural and disgusting. Since it impossible to not be a human and