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.)