Me and a few friends used to ring each other if we saw them lumping out on each other's pre-baited areas to let them know the fish were there if they could get down to the lake, it was then up to them to give the nod for you to fish it if you couldn't, but we all felt the same and rarely did even with the green light. We'd all want the one who's put the effort in to catch the fish. We did largely have the pit to ourselves though around a few day members.