The Simpsons are a family who live in a fictional "Middle American" town of Springfield. Homer, the father, works as a safety inspector at the Springfield Nuclear Power Plant, a position at odds with his careless, buffoonish personality. He is married to Marge Simpson, a stereotypical American housewife and mother. They have three children: Bart, a ten-year-old troublemaker; Lisa, a precocious eight-year-old activist; and Maggie, the baby of the family who rarely speaks, but communicates by sucking on a pacifier. Although the family is dysfunctional, many episodes examine their relationships and bonds with each other and they are often shown to care about one another. The family owns a dog, Santa's Little Helper, and a cat, Snowball V, renamed Snowball II in "I, (Annoyed Grunt)-Bot". Both pets have had starring roles in several episodes.