Please fire me. As the cook in a small restaurant, I take dietary requirements very seriously. So...

Please fire me. As the cook in a small restaurant, I take dietary requirements very seriously. So when people ring in and book I ask them on the phone to disclose any allergies/intolerances. Despite doing so, I still manage to get individuals (such as the following one) who show up and demand I cook them something suited to their requirements, even though when they tell me over the phone they had none. This is especially difficult when their said requirements are hard to cook for when i have no appropriate ingredients on hand.
On Saturday a lady who is part of a big group shows up, and literally squeezes her overlarge self INTO my kitchen (???) and tells me she is Coeliac, Lactose free, and has an allergy to garlic and onions, and demands I cook her a meal “just as good as everyone elses.” So I tell her not to eat any of the Share platters I put out for everyone else, and I will make her a suitable meal of her own. 30 minutes later, I personally take this meal out to this woman, to find her eating a SHARE PLATE of zucchini fritters which contain Gluten, Lactose, Garlic and Onions.