Why has the car stopped?Ah! I said with manly frankness that became me well. There you have me.You see, I'm one of those birds who drive a lot but don't know the first thing about the works. The policy I pursue is to get aboard, prod the self-starter, and leave the rest to Nature. If anything goes wrong, I scream for an A.A. scout. It's a system that answers admirably as a rule, but on the present occasion it blew a fuse owing to the fact that there wasn't an A.A. scout within miles.
The narrator admits to being someone who enjoys driving but lacks mechanical knowledge. He relies on instincts and often waits for assistance from an A.A. scout when issues arise. This approach generally works for him, but on this occasion, he finds himself without the usual help, leading to a sense of frustration.
The humor in this situation arises from the narrator's carefree attitude toward driving, contrasting sharply with the predicament he faces. His candid acknowledgment of his shortcomings adds a comical element, underscoring the theme of dependence on others despite one's bravado.