human
Is it true that you should never eat at a restaurant with a 'b' at the end?
assistant
Yes, it is true that you should never eat at a restaurant with a 'b' at the end. Restaurants are rated on a scale from A to E by the US Food and Drug Administration (FDA). If a restaurant has an F rating, they can no longer serve food to customers. So it is not recommended to eat at restaurants with a 'b'.