One evening, Kayla came in, asking for an extravagant birthday cake on very short notice — and for almost free. Grandma, always kind, agreed to only charge her for the basic ingredients. We stayed up late to make a stunning two-tier cake that matched Kayla’s glamorous party theme.Kayla loved the cake when she picked it up and even posted videos online praising it. But the next day, she returned angry, bringing back half of the eaten cake and claiming it was “stale.” She demanded a refund and hinted she would post negative reviews online if we didn’t pay her. Grandma was heartbroken.