Rotating legs tangled in my two long haired Siberian cats. Then they panic and I have to chase them down and pull them out of their mech. He will tangle in their fur, usually their tail or abdomen when they are in front of or fighting him. I even had to cut it out of my cat's tail once. They love chasing toys, except being easily stopped by a wall or furniture, but the fur issue is too alarming. This can be great for cats with shorter coats. , which means the batteries will be drained fairly quickly. With rechargeable batteries, it takes longer but a little slower.