Saying "No" To Salespeople, Effectively

I have just discovered how to render a door-to-door salesman speechless. At least if the company he's representing is named "United States Beef Purveyors." When said salesman knocks at your door announcing that he's got "great specials on T-bones, Kansas City strip steaks, filet mignon, and other prime beef cuts," don't just say, "No, thank you." The answer you are looking for is "Sorry, we're vegetarians." He'll give you a really funny expression, his jaw will drop, and he will walk off without another word. Guaranteed.

Y'all can thank me later.