the occupants vary in body language from jubilant to indifferent to terrified , and run the gamut in ages ( he has noticed ever since this ordeal began a definite incongruity in the number of children proportionate to adults ; the only theory he can come up with is that those parents with young ones still at home were probably more likely to take wild chances to keep that family intact , and thus had been eradicated early on , whereas the single person was more inclined to say fuck it and hole up somewhere ) , though they have all in common , hes sure , that this will be the end of their formerly divergent lines .