A Rat Terrier,... -138th Westminster Kennel Club Dog Show A Rat Terrier, one of three new breeds, meets the press during a press event at Madison Square Garden January 15, 2014 to promote the First-ever Masters Agility Championship at the 138th Annual Westminster Kennel Club Dog Show . Dogs entered in the Agility trial will be on hand to demonstrate skills required to negotiate some of the challenging obstacles that they will need to negotiate on Saturday, February 8.