The Simpsons S19 E15 Smoke on the Daughter

"Just a product of society that's lost its good manners."

With Lisa's encouragement, Marge pursues her dream of becoming a ballerina. But when Marge auditions at the ballet academy, Lisa is invited to enroll. Unfortunately, Lisa becomes addicted to secondhand smoke from the other dancers. Meanwhile, Homer's beef-jerky operation runs into a snag.