The picture is funny enough, but in the discussion at reddit, I learned that in Minnesota, they don't play the game by saying "duck, duck, goose," but instead it's "duck, duck, grey duck!" OuchoGroucho told us:
I remember that with Duck, Duck, Grey Duck one can play with the tiniest bit of subterfuge. The person that was "it" would always draw out the first syllable slightly when saying "grrrrreen duck." Sometimes it would cause confusion, and one could slip in "grey duck" and get a slight head start. We would also say many fun colors as we went around. Moving from red duck, blue duck to lavender duck, beige duck, grrrrrassy duck.