This photo shows two power linemen, Randall Champion and J. D. Thompson, at the top of a utility pole. They had been performing routine maintenance when Champion brushed one of the high voltage lines at the very top. Over 4000 volts entered Champion’s body and instantly stopped his heart (an electric chair uses about 2000 volts). His safety harness prevented a fall, and Thompson, who had been ascending below him, quickly reached him and performed mouth-to-mouth resuscitation. He was unable to perform CPR given the circumstances, but continued breathing into Champion’s lungs until he felt a slight pulse, then unbuckled his harness and descended with him on his shoulder. Thompson and another worker administered CPR on the ground, and Champion was moderately revived by the time paramedics arrived, eventually making a full recovery.