When Miranda Craig passed out while doing the dishes at her Texas home, her 3-year-old daughter Dorothy knew exactly what to do: call 911 on her mom's cellphone. As Dorothy's 5-month-old brother cried in the background, the toddler told the dispatcher her name and that her mom, who suffers from narcolepsy, was "on the ground." Sheriff's deputies tracked the cellphone and found the family by going door-to-door.