Unlike the Pauls Garner, there seems to be something untameable, unbreakable about Sixo. The other enslaved men can all be compelled to obey schoolteacher and his nephews, but there is something about Sixo that seems to frighten the white men, something that they cannot seem to touch. Sixo even scares the other enslaved men sometimes, and he is so brave, insisting on living his life regardless of his status as an enslaved man. For example, he has his relationship with the Thirty-Mile Woman and, even when he is being burned alive, he laughs. Schoolteacher has determined that Sixo "will never be suitable," and so he orders that Sixo be burned to death. However, Sixo calls out "Seven-O! Seven-O!" which seems to suggest that the Thirty-Mile Woman is pregnant with Sixo's child, and she is going to escape slavery: therefore, his line will go on. He will continue to live through that child. The only way the slavers can get Sixo to stop singing and laughing and shouting is to kill him. Paul D seems to reference Sixo's laughing because it clearly shows that there is a part of Sixo that is totally unaffected by those who try to kill his spirit. It cannot be killed by those who would try, and he knows now that his "seed" will go on in his child.