<humor>So to teach you nuclear physics I'm going to start with molecular biology?</humor>
If they don't know the ricochet hey, they probably won't know the Mad Robin, and you will simply confuse them trying to teach two moves one of which they don't need for this dance.
Also forget pizza's. Here in Saint Louis pizzas are sliced in squares (grin).
My approach:
Gents look at each other. Now look at your neighbor. When I say 'GO' (not now) you will meet in the center and push back to your neighbor's place.
Ladies look at your neighbor. He is headed for your spot so you'd better move. When I say GO (not now) ladies move over to your neighbor's empty spot.
GO.
Good. That's half of the move. Now do it again with the ladies meeting in the center then pushing back to their original spot while the gents move back to their original spot.
GO.
Let't the full move one more time all together. [At speed] Gents to the center and push back, Ladies to the center and push back.
Congratulations you know how to do a ricochet hey. The next move is....
Dale