MAN, THESE TIMES ARE BLEAK; WHEN I STARTED TO LOSE HOPE, MY GRANPA WOULD TELL ME TO REMEMBER HIS BLOOD TYPE; DAD, HOW IS THAT RELEVANT; IT'S VERY RELEVANT, SON; TELL ME HOW; HIS BLOOD TYPE WAS B POSITIVE; DAD, EVEN THE ZOMBIES ARE CRINGING; B POSITIVE, CARL!