Mr. Bean: The Animated Series

Bean wants to buy a box of cereal but is unexpectedly ordered by Mrs. Wicket to buy cat food for Scrapper. While Bean is shopping, the faulty shopping cart he uses accidentally breaks, causing the store manager to stalk him. He decides to build himself a mechanical trolley to complete his errands only to unwittingly buy dog food instead of cat food for Mrs. Wicket, angering her.