A look at the little-documented Grab Day in the villages of the Laguna Pueblo tribe, who annually throw water and food from the rooftop to people standing below.A look at the little-documented Grab Day in the villages of the Laguna Pueblo tribe, who annually throw water and food from the rooftop to people standing below.A look at the little-documented Grab Day in the villages of the Laguna Pueblo tribe, who annually throw water and food from the rooftop to people standing below.