I don't have a single black friend. I don't think there was any black child in my school while I was there. But wait, it's not only black people, I don't know any Jew either (well, I think I once met one). Am I a racist because of that? Of course not, it just happens that there are very few black people around here, since they are mostly not natural in my country, and those that live here are mainly in large cities, not in mine. The Jews were expelled from Spain in 1492, so there are few nowadays too.
Conversely, many people here say they are not racists because they have nothing against blacks or Jews... Of course they don't, they never met any! But they run gypsies and "Moors" down at the least occasion.
By the way, it's not Tin Tin or Tin-Tin, but Tintin