Rude James is a magazine story.
James is at a station and sees BoCo pull up next to him. James calls the big diesel "Square Face" and laughs. At the sheds, James tells the other engines all about it. But then he notices Toby is next to him and Thomas and Percy bring up the fact that Terence, Bertie, and Mavis are square faced too. James apologises about what he said and says the same to BoCo the next day. James feels that BoCo's square face fits his green shape and the big diesel feels that a round face suits the bright red engine as well.