It is not unusual to see aggression. patterns occassionally in cats

Occasionally you will find a cat with unusual patterns of aggression. One of these is food aggression. Sometimes food aggression can be reduced to a cat trying to be "alpha cat" family, but there may be other reasons too.
Food aggression is where the cat would attack another cat to protect his food. You can also try to steal food from other cats. Usually, this type of attack is the cats were strays or were perhaps a shelter where the food was not plentiful. The cat has when it has literally had to fight for others to eat. Once the situation at home, remain confident that the food is coming every day. You can find your cat is trying to "look", a second cat to warn away from food.
Food aggression can occur in homes where there is a difficult relationship between two or more cats, especially if a cat is weaker. In this case, aggressive cat tries to make himself the "alpha" or the number one cat in the house. The tension that builds up can get weaker cat is scared and insecure. It could also lead to more spraying and aggression. I had this problem when Tikki was alive. She would try to push Cassie away from food at night so he could eat two plates. I do not think that it needed the extra food, it just means that he who was responsible. I solved the problem by feeding them in different rooms and make sure that Cassie had been completed before Tikki allowed in the room. After a few weeks after that, solid Tikki down to the extent that was waiting for her meal in the same room with Cassie. When I started feeding them back together, there were no further problems. Since both cats cats are sterilized, there were no problems with any of them spraying urine on vertical surfaces.
If you think your cat has a problem with food aggression, start feeding your cat on each side of the room. Bo and monitors to ensure both cats get their food. Be sure the food at the same time every day, so we know that food is there. This may be one or two times a day, it's up to you. If a dog is causing the problem, feed the cat, where the dog can not get it. This could be in another room or place high, the dog can not reach