Groucho, Chico and Harpo provide big-top bedlam At the Circus. Groucho and Chico work a badge skit, Chico and Harpo scour a strongman's bedroom for evidence, Groucho extols "Lydia the Tattooed Lady," and logic, like the orchestra at the film's antic conclusion, is cut adrift and out to sea. You can learn a lot from Lydia.