You know, somebody actually complimented me on my driving today. They left a little note on the windscreen, it said "Parking Fine."

A classic Tommy Cooper-style pun built on deliberate misreading. The speaker frames a parking ticket (“Parking fine”) as a flattering message about their driving, exploiting the ambiguity of “fine” as both a penalty and a compliment (“fine” meaning good). The humor depends on the audience recognizing the everyday annoyance of receiving a ticket and then enjoying the comic inversion: the misfortune is recast as praise. It also fits Cooper’s stage persona—cheerfully obtuse, confidently wrong, and using conversational setup to spring a quick wordplay twist.