While we lived in USA I did not want Daniel to end up racist as most white Americans.  So I took my son, 2 years old, out hitchhiking 16.000 miles around in all the big black ghettos. My black friends had never seen a white child in their neighborhoods before, so they spoiled him with ice-cream, cakes and overwhelming love. Since the messages children get before three years old shapes them for the rest of their lives I was certain that my positive vaccine would keep him free of racist thinking the rest of his life. 18 years later he hitchhiked along the same route on his own.