A advert that has been complained: An advert that has been complained and the highest results of complained about British campaign in history (1,671)is the KFC advert (Kentucky Fried Chicken) - 2005 it showed a group of workers (call centre) singing with their mouths full. Many people thought it could encourage bad manners amongst young children but the watchdog rejected the complaints. Although the advert was "not to everyone's taste", it was unlikely to change children's behavior or undermine parental authority. The body has received 431,000 complaints during its existence, with a record 31,548 objections logged in 2011. The increase in complaints was due to an extension of the watchdog's remit into web and social media, the ASA said. The Advertising Standards Authority (ASA) marked its 50th anniversary by revealing that the 2005 television advert had proved the most offensive in its history, attracting 1,671 complaints.