Chalkboard: The First Amendment does not cover burping

Couch: Repeat of the couch gag from "Bart's Comet" where The Simpsons are black and white, early 1930s cartoon characters a la Bosko (from Warner Bros) and Mickey Mouse (in the early days of Disney Studios).

Bart: Hey, stop talking bad about my town, man!
Shelby: Why don't you make me!
Bart: I don't make trash, I burn it!
Shelby: Well then I guess you're a garbage man!
Bart: I know you are but what am I?
Shelby: A garbage man!
Bart: Oh I know you are but what am I?
Shelby: A garbage man!
Bart: I know you are but what am I?
Shelby: A garbage man!
Bart: Takes one to know one!

Marge: Where are you going, Bart?
Bart: Mom, you won't believe this, but something you said the other day really got through to me. And now, I'm going to teach some kid a lesson.
(Bart leaves the house)
Marge: I choose to take that literally.
Bart: (yelling from outside) Death to Shelbyville!
Homer: (raising his beer) Yes, Bart's a tutor now. Tute on, son. Tute on!

Marge: It's almost lunch time, do you know where your brother is tutoring?
Lisa: Tutoring? The only thing Bart is teaching is guerilla combat in Shelbyville.
Marge: You have a number where we can reach him?
Lisa: No, Mom, Bart and some kids ran off to wage war on Shelbyville!
Marge: (gasps) Homer, come quick! Bart's left his tutoring job and joined a violence gang!