PEEL SHRIMP, LEAVING ON TAILS. Heat the butter, oil and garlic in a broiler proof pan. Stir in the parsley, cayenne, and lemon juice. Add the shrimp, tossing to coat. Place under the broiler 6 inches from heat, and broil until done, about 5 minutes. Check half way through the cooking time and turn shrimp as necessary. Serve with crusty bread for dipping in the sauce. Makes two appertizer servings.