Peel and devein shrimp. Mince garlic and chop the scallion. Squeeze 2 T. lemon juice. Heat butter and oil in large frying pan over medium heat. Add shrimp, garlic and 1 t. salt, stirring until shrimp turns pink, 3-4 minutes. Stir in lemon juice and scallion. Sprinkle with parsley and serve. Makes 4 servings.