This happened to me with my grandaughter. We got home and I noticed she had something we didn't buy. I confrounted her about it she admitted she took it. I told her she would have to return it. So my husband and I took her back to the store while he took care of her inthe store I went to the service desk and talked to the supervisor. I explained what happened and told them I was willing to pay for the item. I asked them to talk to her firmly when we brought her over and she was not to know that I was willing to pay for it. The supervisor got the security guard person to handle it. He did a great job & explained to her what would happen next time. She left crying but it has not happened since.