So been out over the last few weeks on my perms and noticed lots of metal detectorists out. I was sat in the hide when one popped around the corner of the hedge and headed towards my decoys. Obviously I slipped the gun and had made my presence known. Whilst greeting the person in question I was told I know you were there. I explained that It was not the safest thing to do. I was told that he was aware I was there. I ended the conversation and he walked off only to return half later with another and proceeded to have a picnic on the bales about 40 yards off my pattern. Has anybody else had this problem? Is it worth discussing with the landowner?