`` just in general , '' i mumbled , hoping she did n't try to investigate too much further into why i was asking these questions . davids legs didnt respond immediately but he soon engaged his brain and his foot lunged forward , as if by instinct . you deserve to be , sweetheart , terry said from behind him-yeah , that was terry , all right , helpful to the end . it was almost too difficult to keep her eyes open . `` come on , their problem is n't that they 're human . 