Not Booked For Stealing

(In the store where I work, to prevent theft, a security alarm at the doors will go off if your items have not been scanned. At the same time, we’re never allowed to accuse someone of stealing. A woman walks through the doors to leave and the alarm sounds off and she comes to a halt, so I approach her.)

Me: “Hi, ma’am. Sorry about that. Do you want me to go re-scan those to make sure the alarm won’t sound off when you walk out again?”

Customer: “Oh, I think these might have accidentally fallen into my pockets. I’m sorry…”

(She then pulled out two books from her coat pockets, handed them to me, turned, and walked out, leaving my coworker and me very confused.)