Whether it is a petition in Montauk, pleading with the school board to increase the tax levy to keep class sizes small, or a parent uprising in East Hampton over the ouster of the elementary school principal, democracy in the districts is in good evidence this season, at least in the sense that the aggrieved have exercised their right to speak their minds. Not so among some school board members, who apparently think the position gives them the right, if not the obligation, to conduct important business in secret.