Add garlic to a large salad bowl. Add olive oil and stir and let sit for a few minutes. Add vinegar, anchovy, Worcestershire, and lemon juice, and stir. If you'd like a thicker dressing, add half the Parmesan now. You can let this sit while you prepare the rest of your meal. Dip a lettuce leaf in to taste your dressing. If it doesn't taste fiercely of lemon juice, garlic, and anchovy, add more of those, to taste. The balsamic and Worcestershire should be in the background. Just before serving, add lettuce and celery and toss. Add Parmesan and freshly ground pepper before a final toss. Serve immediately.