Sweet Seymour Skinner's Baadasssss Song

This is the show's 100th episode.

Sweet Seymour Skinner's Baadasssss Song Plot
Bart brings in Santa's Little Helper into school for show and tell. When he has to put it in the closet so he won't disturb class, it escapes into the vents. He causes mayhem through out the school, and when Superentendant Chalmers hears about it, he fires Skinner. Bart starts to feel guilty for getting him fiered. So he and Skinner try to make a plot to get him rehired.

Quotes

 * Willie: "There's nearly an animal alive that out-run a greased scottsman."