A woman who ran a poultry advocacy group and rescued chickens from poultry trucks was upset because every year around Thanksgiving and Christmas (during higher consumptions of chicken), This American Life would feature a show about chickens called “The Poultry Slam,” a spin off of a poetry slam.
He featured a story on her and after visiting the United Poultry Concerns Chicken Sanctuary on the Eastern Shore, he started eating less and less chicken, eventually stopping altogether and becoming vegetarian.
Here’s a video of Glass on the David Letterman Show discussing his visit, both humorously and seriously describing the events that led up to his vegetarianism.
When Glass asks Dave if he’s met any chickens, Dave sarcastically answers “not more than usually one sauteed breast at a time.”