Martin Short is taking his return to “Saturday Night Live” this weekend seriously. So seriously, in fact, that he’s already making some hilariously unreasonable diva demands. In new promos for Saturday’s episode, Short begs for compensation from Fred Armisen — who complies by giving him one whole dollar. He also goes absolutely berserk when he’s delivered a salad that doesn’t live up to his expectations. Of course, this is all in jest (although his reaction to the salad mix-up is absolutely terrifying). Regardless, let’s just hope his dressing room is full of wedge salads when he hosts “SNL’s” holiday episode this Saturday with musical guest Paul McCartney.