How does the author use foreshadowing in The Conservationist?

In Chapter Six, the author includes an element of foreshadowing when Mehring hears Terry bashing the country and the South African system. He becomes angry at his son's political views, but he is likely more angry at the fact that these views make it very unlikely that Terry will live up to his wishes. He is conflicted and knows that he has missed many opportunities in his son's life to really connect. This guilt makes it difficult for him to pass judgment on his son's foolish notions about life. He also keeps his son at arm's length. They are not emotionally close and never will be. Mehring has squandered possibly his last chance to be open with Terry.