What is the most common city of all customers with the customer status code "Bad Customer"? | What do you mean by saying the most common city? | The city name that appears the most
SELECT T2.city FROM Customers AS T1 JOIN Addresses AS T2 ON T1.customer_address_id  =  T2.address_id  where T1.customer_status_code  =  'Bad Customer' GROUP BY T2.city ORDER BY count ( * )  LIMIT 1
most common city refers to the city that appears the most among customers with the customer status code 'Bad Customer'; customers with the customer status code 'Bad Customer' refers to WHERE customer_status_code = 'Bad Customer'; join is required between Customers and Addresses tables on customer_address_id and address_id to get the city of the customers;