“Medicines in the home are a leading cause of accidental poisoning,” the East Hampton Town Police Department cautions in a flier promoting a drug take-back day on Saturday at Town Hall. Add to that the facts that “many teens abusing prescription medicines get them from the home medicine cabinet” and that old medicines tossed in the trash or flushed down the toilet can contaminate aquifers, bays, and ponds, and you have three good reasons to find a place to safely dispose of old medications.