GEN743 Be particularly careful not to dishonor your parents, even when one of them has done something wrong.  Protect your parent’s dignity, as Noah’s two sons did.   Jewish law notes several instances in which guests and hosts must exercise case not to embarrass one another.  For example: Don’t ask a guest intellectually demanding questions unless you have reasons to believe that he will know how to answer them; otherwise you will cause him embarrassment (Sefer Chasidim 312).  [Author’s note:  Attempting polite conversation, I once asked a fellow dinner guest what kind of work he did.  Our host immediately interceded and changed the subject.  Only later did I learn that the guest was indigent and had been invited to dinner as an act of chesed.  From that incident I learned to be more circumspect about personal questions. This might equally apply to questions about marital status, children, residence location, personal history, etc.].  TELVOL1:290