Went to a store to "grab" something but I also bought it's cheaper worse alternative to blend in. This store has those anti theft detectors at the entrance. Anyway when I paid for my item the cashier scanned the item then dragged it across this black block then handed it to me. What was that? Nothing came off the item and when I opened it up there was no chip or whatever inside. So what was it? This was at s pharmacy and I want to take some meds.