Worst Use of A Jewish Metaphor?

Newsweek has Alan Dershowitz commenting on the legal tactics in the former IMF head Strauss-Kahn (DSK) case. Dershowitz explains that the victim and DSK are probably looking to make a deal, where DSK pays a large amount of money, for the victim to refuse to testify against him. However, such deals are an obstruction of Justice. So, how does one get around the problem? 

The problem is the high-wire dance is going to be very hard to orchestrate here. Because nobody can say: “I will give you a million dollars, $2 million, $3 million, and you have to not testify.” That’s obstruction of justice, that’s a crime. So the request essentially has to come from the victim. Did you ever hear of the concept of the Shabbos goy? The Shabbos goy is when an Orthodox Jew wants the light to be on, on a Saturday, and he sees a Gentile. He can’t ask the Gentile to turn on the light, because that would be a sin. But he can say to the Gentile, “Boy, it’s really dark here.” And then the Gentile has to come up with the idea, “Hmmm, it would be nice if I turned on the light.” [The defense lawyer], because he’s an Orthodox Jew, understands that he needs a Shabbos goy here. He needs somebody who will understand that he can’t ask for something that he wants. And what he wants is for this witness to go away.

Couldn't we find a non Jewish metaphor to suggest doing something illegal?