18 month old thief on the loose

Yes you read that right our 18 month old is a little thief and I am not talking about just stealing mom and dad's things she actually stole from a store. We were at Best Buy looking at things, Leila had been in her stroller for most of the time but then crawled out and was looking at things on shelves she had been playing with a package of electronic cleaner near her stroller. When we went to walk out of the store I loaded her back in her stroller and we walked over to Costco. As we were making our way through Costco I noticed something in the stroller basket, it was the cleaner, Leila had stuck the cleaner in the basket. So we made our way back to Best Buy and returned it the, cashier just laughed. She could have at least taken something good.