CARACAS, Venezuela (AP) - Firemen dug for bodies farther up the gully, and the house next door was smothered in mud, but 68-year-old Juan Crespo sat calmly at his dining room table, refusing to heed relief workers' calls to evacuate. A resident of the Caracas slum hardest hit by Venezuela's worst natural disaster this century, Crespo is staying put in the house on a ravine's edge where he's lived for 40 years. Only the weather might change his mind. Coaxing victims into shelters was just one of the challenges facing Venezuelan relief efforts Tuesday - six days after torrential downpours sent mud, water and boulders crashing down a mountain that separates Caracas from the Caribbean Sea, wiping out whole neighborhoods and killing thousands.