-When you launch an attack on storage buildings or closed branches, you can either demolish them or completely empty them. This does significant damage to the competition.
-You can damage other branches' reputations with well-directed acts. For instance, you can appoint punks to annoy the customers. If you want to protect yourself from operations like this, you have to hire security guards. You can also effectively sabotage rivals' branches by planting rats and cockroaches, which will put the customers off their food. You can also take more drastic action and poison the ingredients, or let woodworms loose on your rival's furniture. While your opponent is busy dealing with the acts of sabotage, his customers will leave and you will then acquire new customers.