Have the rabbit disjointed and cleaned. Pour boiling water over it, scrape, rinse, and dry. In a glass or pottery bowl combine the vinegar, garlic, bay leaf, salt (optional, pepper, and 4 tablespoons of the oil. Add the rabbit and marinate in the refrigerator for 48 hours. Drain. Put the bacon in a Dutch oven and cook until lightly browned. Add the sliced onions and cook until golden. Blend in flour and add rabbit. Cook 10 minutes turning the pieces several times. Add the wine, bring to a boil, and stir in the chocolate. Cover and cook over low heat 1-1/2 hours or until tender; add salt and pepper to taste after 1 hour. While the rabbit is cooking, saute the white onions in the remaining oil until golden. Arrange the rabbit on a hot platter with the sauteed onions and bread around it. Serve with noodles.