RACCOONS may live in your attic, chimney, shed, garage or nearby buildings. Nests can block vents and cause fire and carbon monoxide hazards. They damage roofing, gutters, soffits, wiring , gardens, lawns and yard materials. Droppings foul yards and play areas. Injury risks: bites and scratches. Diseases: major rabies carrier and raccoon roundworm parasite risk.