You notice patterns. White guests often are mortified - that word again - when they learn their ancestors owned slaves. But I've never had a black guest who was upset to learn about white ancestry that probably involved forced sexual relations.

In America one drop of black ancestry makes you black. In Brazil, it's almost as if one drop of white ancestry makes you white.

The Western stereotype of Africa and its black citizens as devoid of reason and, therefore, subhuman was often shared by white master and black ex-slave alike.

It's no surprise that White people say things when they are together about Black people.