I have used the "Pledge of Allegiance" in a similar way. However, I do not officially teach this any more. My contestants are going to have to largely learn the rules on their own -- though I will supply them with what they need, including video-taped lessons on Youtube.
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One thing I haven't stressed here, is that there lurks a sense of humor behind all of this -- which is NOT to say that I do not take it seriously. The point is that it is meant to be fun -- even funny.