Remove the leaves, except a few at each tip, from the rosemary sprigs. Cube the fish and the bread. Slice the bacon into 3 pieces each. Thread the fish, bread and bacon onto skewers. Drizzle with lemon juice and garlic-infused olive oil. Braai over hot coals or bake in a preheated 200°C oven for about 5 to 7 minutes.