Cat vs light sussex

Hey guys just now my I caught my cat eating my chickens food. I was first of all scared for my cats kidneys (too much calcium) and of course my chickens so I scared my cat off. Despite me she went back to try and eat the food and as I was running to get her away my light sussex came out. I could see a fight about to happen and I was right. Except the opposite result my light sussex gave my cat such a kick she landed on her side and made a run for it! My cat learnt her lesson!!