QUESTION: What can I do if I bit on a bone inside a McNuggets from McDonald’s? It was huge and looked like a half of a chicken wing bone. ANSWER: Providers of contaminated (“adulterated”) food may be liable on product liability and breach of warranty theories if the injury-causing substance is foreign to the food (e.g., bits of glass or wire). However, a substance that is natural to the preparation of a food item (e.g. chicken bone) is by its very nature reasonably expected and, as a matter of law,.