MILTON, Wis., May 23.— (Pi—Milton College students have been getting more than vitamins from the oranges they’ve been eating between meals, Rock county authori ties said today. The sheriff's office said a freshman, 20, was picked up along a country road near Milton Junction. Officers said that from a distance they saw the student standing next to his car. It looked, they said, like he was using a surgical syringe on an orange. A close-up inspection proved this to be correct. The deputies found the student, who they did not identify, was injecting vodka into oranges. The youth explained, they said, that he took the oranges to the Milton College cam pus to eat between classes. The student said the “screwdrivers in the rough” are the latest “rage at col lege.” “Everyone’s doing it,” he was quoted as saying.