Yell ''APE!'' to Request Stop

This cartoon is from the episode WALL·E·NATOR / Extreme Renovation: House Edition.

Summary of Skit
The sign on the bus changes from "Push yellow tape to request stop" to "Yell ape to request stop".

Transcript
(Scene cuts to people on a bus.)

(A man with a hat is bored, then looks at a sign which reads "Push yellow tape to request stop.")

(The man grins and changes the words with a black marker. The sign now reads "Yell ape to request stop.")

Guy: APE!

(The man laughs and an ape beats him up.)