This report of two separate accidents at Snow Valley, California, that cost one man a leg and severely injured another points up the need for constant vigilance in the realm of safety. One accident involved Brian Best, who fell off a tower while working on a communications line. Two days later, Craig Anderson was rigging to raise the counterweight when the roller chain used to link the carriage to the weight jumped the teeth of the stationary dead-end sproket and dragged him into it.