Impudent Wendy

Wendy flips off Grunkle Stan as he turns his back. She was told to sweep the floors.

Transcript

 * Grunkle Stan: Wendy, you are going to sweep the floor, right?
 * Wendy: Of course, Gruncle Stan! Count on me!
 * (But, as Stan turns his back)
 * Wendy: (flipping off Stan) Shyaah - Right Ya goat faced jackass!