I've been mowing a customer for over three years. The boundary between her's and her neighbors yard has always been made clear by the neighbor. All of a sudden, the boundary has "shrunk" and I can only infer that the lowballing firm that was advertising there a few weeks ago, has a new customer. Before a few weeks ago, the neighbors yard was always neat. Now it's sloppy. I cut the extra grass last Friday going into the 4th weekend, but not today. I'm not going to do someone else's work for them so they can rush off to butcher the next yard. I know this could just be an innocent misundersanding, but like I've said, I've been mowing that lawn for three years and the boundary was clearly established, so how can it be anything but sloppy work?