Late Friday, while edging a residential customers lawn ($500,000 community). I had to stop and watch as a "crewman", from another company and working on the lawn next door, procceded to line edge and blow out the line at the same friggin time. Backback blower stapped to his back, with one hand he inverted the line trimmer and proceeded to edge - with the other hand blowing as he went. I kid you not in some places the "edge" went into the lawn at least 10 inches. The worst part about it was two other "crewman" watched as he worked. Almost walked over there and said thanks, had not laughed like that in awhile.