Bartholomew "Bart" Simpson is voiced by Nancy Cartwright (that's right, a woman!) and is Homer and Marge's only son on The Simpsons. Bart is an underachiever and was definitely much more of a bad boy in th ebeginning seasons of the show.
Now, Bart, although he has not aged, has certainly matured as a character. Do the Bartman people.
Bart: Otto-Man? You're living in a dumpster?
Otto: Ho, man, I wish. Dumpster-brand trash bins are top-of-the-line. This is just a Trash-Co waste disposal unit.
Bart: Uh, say, are you guys crooks?
Fat Tony: Bart, um, is it wrong to steal a loaf of bread to feed your starving family?
Fat Tony: Well, suppose you got a large starving family. Is it wrong to steal a truckload of bread to feed them?
Bart: Uh uh.
Fat Tony: And, what if your family don't like bread? They like...cigarettes?
Bart: I guess that's okay.
Fat Tony: Now, what if instead of giving them away, you sold them at a price that was practically giving them away. Would that be a crime, Bart?
Bart: Hell, no!
Fat Tony: Enjoy your gift.