Al Capp veterans returning from the war. Capp was also involved with the Sister Kenny Foundation, which pioneered new treatments for polio in the 1940s. Serving in his capacity as honorary chairman, Capp made public appearances on its behalf for years, contributed free artwork for its annual fund-raising appeals, and entertained crippled and paraplegic children in children's hospitals with inspirational pep talks, humorous stories and sketches. In 1940, an RKO movie adaptation starred Granville Owen (later known as Jeff York) as Li'l Abner, with Buster Keaton taking the role of Lonesome Polecat, and featuring a title song with lyrics by Milton Berle.
Al Capp eclipsed "Joe Palooka" in popularity. Fisher hired away Capp's top assistant, Moe Leff. After Fisher underwent plastic surgery, Capp included a racehorse in "Li'l Abner" named "Ham's Nose-Bob". In 1950, Capp introduced a cartoonist character named "Happy Vermin"—a caricature of Fisher—who hired Abner to draw his comic strip in a dimly lit closet, (after sacking his previous "temporary" assistant of 20 years, who had been cut off from all his friends in the process). Instead of using Vermin's tired characters, Abner inventively peopled the strip with hillbillies. A bighearted Vermin told his slaving assistant: "I'm proud of having created these