That happened to me last night...
We went to Walmart got a ton of stuff. I saw the 20$ cake pop maker for kids and wanted to try it. Our neighbors have 6 kids so we figured we could share it with them too. We checked out in the back of the store because we park there... Yeah DH hates it but it feels easier to me. The poor lady was sick and we were all chatting and were having a nice time. She almost forgot the diapers and the new shoe rack under the cart till I reminded her the very last second.
I don't think we have the recite anymore DH threw it away... But regardless I'm keeping the box and taking it back and paying for it properly. :)