Last week, Jimmy Kimmel broadcast this surprisingly hard-hitting public service announcement about childhood vaccinations. He felt the need to talk about vaccinations, he said, because, at least in some parts of Southern California, "parents care more about gluten than smallpox." Since anti-vaccination parents wouldn't take advice from a talk-show host, Kimmel invited on real (foul-mouthed) doctors, who "didn't learn about the human body from their friends' Facebook page." Jenny McCarthy probably won't go on Kimmel Live anytime soon: On Monday night's show, Kimmel noted that, not surprisingly, anti-vaccination advocates weren't pleased with his segment.