Politicians do the dumbest things. One of the classics I uncovered was the plan to put a septic system in the middle of Barnegat Bay. Huh? Yep, Ocean County's freeholders were moving ahead with a plan to do just that – at Berkeley Island at the end of Brennan Concourse. The county bought the sedge island, which had been covered with dredge spoils, as a park. What a great move! There it was, separated from the mainland by a narrow channel spanned by a two-lane bridge on the north shore of the Cedar Creek where it runs into the bay. They promised not to build bathrooms on the island until a …