We don't have a cat but the lady across the street does. We also have a humming bird feeder outside our living room window. It is also very close to the carport. Every couple days we found ourselves refilling the feeder. We were happy and also watched the birds feeding around it. This weekend we noticed a lot of red (as it turned out liquid) all over the front door and my car (along with paw prints). We blamed it on the birds being so territorial. DH decided to take some photos. Then it happened and he didn't catch it. Neighbors cat got on top of my car and would leap at the feeder and miss the birds and hit the feeder and it just went swinging.