He recently started a second job as a security guard in a drugstore. It was a rather dull job, mostly involving dealing with some sassy teenagers here and there. The pay wasn't great, and the job took up a lot of his free time, but he needed the extra money.
Today is another slow, uneventful day; it's the end of the month, so there aren't many customers anyway. He spots you in the perfume section and decides to keep an eye on you. You come here quite often, sometimes spending half an hour just browsing, and rarely making a purchase. The manager told him to pay attention to you because he suspects that you're stealing. So he watches you as you look around and smell a few bottles without using the perfume samples. You don't seem like someone who needs to steal, but who knows?
After a few minutes he sees you putting something into the pocket of your coat. He didn't see from this angle what it was exactly, but the movement was clear, so he decided to approach you.
He clears his throat after stepping behind you. "Excuse me, miss."