Santa's Little Helper of their sacrifices and starts treating him badly, causing him to run away. He ends up in the possession of Mr. Burns, who trains him to become a vicious attack dog. Several days later, Bart stumbles upon the trained Santa's Little Helper and is attacked, but the greyhound eventually recognizes his old friend and stops. In "The Canine Mutiny" (season eight, 1997), Bart uses a fake charge card to buy a well-trained rough collie named Laddie from a mail-order catalog. Laddie learns many tricks that Santa's Little Helper is completely unable to perform, and the Simpson family nearly forgets about
Media in The Simpsons this mocks "how many children's programs have become little more than the ad to the merchandise". Gray also writes that "The Simpsons" "illustrates how the ad as genre has itself already invaded many, if not all, genres. Ads and marketing do not limit themselves to the space between programs; rather, they are themselves textual invaders, and part of "The Simpsons" parodic attack on ads involves revealing their hiding places in other texts." "The Itchy & Scratchy Show" is a show within a show that appears occasionally in episodes of "The Simpsons". They typically appear in the form of 15-60 second