Simpsons, The Easter Egg - Godfather Fight Scene

In the episode where Marge gets mugged, hides in her basement, finds Homers barbells, and begins lifting weights, she gets really strong and enconters the mugger again. When she does look at the scene and moves she does. There are exacly the same moves used in the Godfather when a guy gets angry because someone slept with his sister. Its a pretty cool egg when you see it.