A Texas grandmother explained today how she piled three children into a bathtub to survive a rampaging tornado and hung on to a toddler's feet as the twister tried to suck the boy into its vortex. When the nightmare was over the house where Sherry Enochs was holed up was little more than "wood and debris piled up," she and three children she was babysitting were covered in mud and Enochs had a nailed speared into her foot, but they were alive.