Homer: Uh, Milhouse saw the elephant twice and rode him once, right?
Mrs. Van Houten: Yes, but we paid you $4.
Homer: Well, that was under our old price structure. Under our new price structure, your bill comes to a total of $700. Now, you’ve already paid me $4, so that’s just $696 more that you owe me.
Mr. Van Houten: Get off our property.