[QUOTE=Stephanie;1522] Who knows it is one of those mysterious things that only a dog would be able to tell you.......[QUOTE]

That's right up there with the circles before laying down.
I watched a movie "Good Dog" and in the movie, the dog said "It's to build a barrier against bad dreams" so maybe grass eatting really is right up there and "we the people" are just reading too much into it .