In Dirty Objects, James mocks Toby's shabby paint. Toby has the last laugh in the conversation.
"James," he asked, "why are you red?"
"I am a splendid engine," answered James loftily, "ready for anything. You never see my paint dirty."
"Oh!" said Toby innocently, "that's why you once needed bootlaces; to be ready, I suppose?"
James went redder than ever and snorted off.