Right.....so you're the expert on what one can and can't be allergic to? Regardless of allergens which are a serious thing for food service, if a customer asks you don't include an element and you do anyway they have a right to complain. Yeah a lot of fats employ that tactic to get free food, but at the end of the day its not worth the risk for a food establishment to take. Are you a dumb kid or just never worked in food before?