I wouldn't mind if today passed without any customers claiming that they purchased an item at our store when they could not have because we never carried it. From what I have learned, this is a common occurrence, not just for me, but for stores and clerks everywhere. I have written about it before. It is an annoying situation to navigate. When the customer is insistent and refuses to back down gracefully, the clerk is basically forced to tell them that they are wrong, without doing so of course.
I don't like to do it. Please don't make me do it.