I bought this bone for Cooper in 2007 or so, fully expecting him to chew it up within days. For some reason, it became his most cherished possession. When I have visitors, he digs it out of his toy basket and brings it in the living room until everyone comments on it. Then he very quickly runs into one of the bedrooms and hides it so no one can steal it from him. Some days he carries it around for hours, but he's never chewed it even a tiny bit.
The dog is not normal.