Local storeowners say business has suffered since Clinton High School decided to prohibit students from going out for lunch. Employees at Dunkin Donuts and a number of delis on Jerome Avenue say they've lost customers. They say sales are down and hope the restriction will eventually be lifted. Students, unhappy with the restriction, marched their fight to the superintendent?s office in protest. School officials, however, say the changes were put in place to ensure student safety.