Do you really think linemen are morons? What, do you think they turn the power off to work on the lines? You think they bet their asses that the circuit is cold and going to stay that way? You don't touch bare wiring in anything without assuming it will kill you and taking the appropriate caution. And trust me. Linemen don't accidentally brush up against wires. Doling so in that line of work can be deadly and will get you fired to save your life and those you work with.