Model Rule 6.2 allows an attorney to avoid appointment by a tribunal to represent a person when the client or the cause is "so repugnant to the lawyer as to be likely to impair the client-lawyer relationship or the lawyer's ability to represent the client." Do you think it would allow an African American attorney to refuse to represent a member of the Ku Klux Klan accused of placing a burning cross on the front lawn of an integrated church? What other examples can you think of that might fit this exception?