In what theologians have described as “the triple crown of sin,” Woburn resident Donald Keegan’s decision to wear a garment of mixed fibers while eating shellfish on the Sabbath has led to the breaking of the seven seals, the sounding of seven trumpets, and the raining of flames down from the heavens in a series of events that will almost certainly lead to the cancellation of this week’s Patriots game, as well as the destruction of mankind.