A guide should never be involved with a claim dispute. If someone decides that they are going to hog an area and defend it with there life, it is up to the person seeking to use the area to either give-up, fight the other guy off, or make a deal of some kind. If said person keeps coming back and the other keeps killing him, well, so be it, he is asking for it. Go find another scrap pile or put on your big boy crafty pants and deal.