They say old habits die hard, which seems to hold true for Kandaswamy Kaveri Arjun (52) and his wife Shanta Arjun (47). About two years back, mid-day had exposed their drug racket (‘Garbage dump outside school is a drug den’, June 16, 2012), which they were operating barely 25 feet away from the Nityananda High School, Vile Parle (East), next to a municipal garbage dump. Last week, the duo was back in business at the very spot they were earlier picked up by the police.