i picked up a new customer that hasn't cut their yard since sometime last year. its a small yard so it will be easy to do after its done the first time,but while we're walking around the yard they tell me, in this general area there is a live electric wire that use to go to the light on the carport. now its coiled up under about 2' of grass. now i'm having 2nd thoughts in fear of finding that wire with my mower since they don't know the exact location. has anyone ever cut a live wire with their mower or trimmer? if so what happened?