Responding to an over-abundance of low-cost beef, McDonald's unveiled the new five-patty McCrazy Burger Tuesday. 'A pound and a half of all-American beef topped with lettuce, tomatoes, and a dollop of our new peppercorn sauce,' said Melanie Haas, marketing director for the fast-food giant's Northwest region. 'We promise you'll go crazy from the delicious taste of 100 percent pure beef, and not from bovine spongiform encephalopathy!' Haas refused to comment on the exact geographic origin of the cattle used in the new sandwich. 