Arnie Cunningham: (talking to his parents about his car being destroyed) It's your fault. If you hadn't been so damn selfish, you wouldn't let me park my own car in your precious driveway, this never would have happened.
Regina Cunningham: (saddened) Arnie, that's not fair.
Arnie Cunningham: Oh it's fair.
Regina Cunningham: Can't we even talk about this, like rational human beings?
Arnie Cunningham: One of them took a sh*t on the dashboard of my car, Ma. Now how's that for rational, huh?
Michael Cunningham: Why don't we. Your mother and l have decided to help you buy a new car.
Arnie Cunningham: Well, that's what everybody wants, isn't it? Well, f**k you. I'm fixing up Christine.
Michael Cunningham: (runs after Artie and grabs him by the jacket) Listen, mister, you've been disrespectful to us once too often! You go back in there and apologize to your mother right now!
Arnie Cunningham: Hey take your mitts off me, motherfu**er! (Attacks his father)