Paul Rudd stopped by "The Late Show with David Letterman" Tuesday night to share his thoughts on the audience member who vomited during his Broadway show, "Grace," also starring Michael Shannon. Though the list has its funny moments ("What is this, the Ed Sullivan Theater?), it's mostly hilarious to think of a theatergoer vomiting over a balcony railing onto the people below. According to the New York Post, the offending audience member had had too much to drink, and his resulting nausea incited "mass chaos for several minutes." Rudd eventually continued on with the performance, thanking the audience for "sticking with us" during his curtain call. The show must go on, people.