Charles B. Pierce with Eastwood, who liked the story and helped Pierce develop it into "Sudden Impact" (1983), the fourth entry in Eastwood's Dirty Harry film series. Pierce was given a writer's credit for the story along with Joseph C. Stinson. Pierce is said to have written the phrase, "Go ahead, make my day," the film's most famous line, which went on to be identified as one of the ten best movie quotes of all-time by the American Film Institute. The phrase was inspired by something his father once told Pierce in his youth while encouraging his son to mow the lawn: "When
Go-Ahead Group purchased as well as the Hexham operations of Arriva North East and integrated into Go North East. In August 2010 Go-Ahead America, a joint venture with Cook Illinois in which Go-Ahead held a 50% stake, commenced operating a yellow school bus contract in St Louis, Missouri. In September 2010 Meteor Parking was sold to Vinci SA, bringing Go-Ahead's involvement in the aviation support industry to a close. In May 2011 Go-Ahead acquired Thames Travel in South Oxfordshire. Acquired in 2012 were Carousel Buses (March) integrated into Oxford Bus Company, Essex based Hedingham (March), the Northumberland Park-based operations of First London