Remove stems from greens. Cut leave into 1/2 inch wide strips. Pour boiling water over greens. Let stand 5 minutes. Drain thoroughly. Fry bacon until crisp. remove and reserve. stir garlic and collards into bacon grease. Cook and stir 2 minutes. Cover and cook over low heat until greens are tender (15 minutes). Stir in slat and pepper. Garnish with bacon.