Ella Wheeler Wilcox's quote began, "Laugh, and the world laughs with you." At Ad-Libs, it would be more appropriate to say, "Laugh, and it's probably because you suggested a topic, the cast took it and ran and turned out something sidesplitting that no one was expecting." Such is the magic of improvisational comedy. So often, we flip channels and hit Whose Line Is It Anyway? (British and American versions) and end up glad Dallas has its own live version just downtown...and since 1986. The cast includes voice actors of kick-ass cartoons and a guy who actually worked with Charles Nelson Reilly (God rest his brilliant soul). The shows are high-energy and pretty painful considering the ab workout from laughing so hard for an hour and a half. Director Phil Larsson says more than 750,000 audience members have provided funny fodder and laughed at the cast of Ad-Libs. If we didn't tell you it's worthy entertainment, that number should. Anybody got a line?