Had to repair a mainline leak a few days ago. There was a rock under the main that was in the way so I had my helper grab a rock bar to break it loose. Come to find out the "rock" was part of a very shallow duct bank. Luckily my helper didn't jam the rock bar right into the high voltage line that was just below the main! The funky pipe angle repair is just par for the course 'round here. Anybody can operate a machine but not everybody is a true machine operator who can dig a ditch that compensates for odd angles.