How do you publicize something that is widely considered socially rude to talk about? It’s okay to urge people to get regular dental exams, annual mammograms, eye tests, and melanoma check-ups, but suggesting the need for a rectal exam is usually not well received (and often not meant in the kindest way). Yet colon/rectal cancer is the second most deadly cancer in America. Ironically, it is also one of the most treatable types of cancer if detected early through regular rectal exams. Meredith’s Miracles Colon Cancer Foundation wanted to bring these facts into the public discussion and asked the ad agency, FCB Chicago, to raise awareness through a public service ad campaign. FCB delivered the warning to Chicago commuters by selectively posting ads on the back side of bus seats. In this case, the placement of the ad is the butt of the joke.