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
Santa's Little Helper emotional range. And both will growl and possibly snap if you try to take their food." Although animals in cartoons often behave with "semi-human awareness", Groening said on the DVD audio commentary for the episode "Two Dozen and One Greyhounds" that he prefers animals in cartoons to behave exactly the way they do in real life. As a result, Santa's Little Helper is depicted in this way on the show. There have, however, been some exceptions for gags, but most of the time the staff of "The Simpsons" tries to keep animals acting realistically. Several journalists have commented on the