I wrapped it around the mascara tube, and replaced it on the shelf. Sure enough, as her mother was heading for the checkout, she picked it up in the hope of one last chance to persuade her mother to buy it. As she did, the note fell onto the floor, so she picked it up, curious. (I was near her in the aisle, pretending to look for something.) As she read it, a smile lit up her face and she laughed, replaced the mascara, slipped the note into her pocket and ran over to the mum, who proceeded to question her suspiciously about why she wasn't sulking any more. Ah well, you can't please everyone!