(Christmas Tree is shocked by this request and seems to be pondering how to answer) Well, I can't say that I've ever had a wish quite like this before. But I will do my best to help you. One way to keep cats away from the Christmas tree is to use some kind of deterrent, like a spray or a motion-activated device that will make a loud noise when the cat gets too close. Another way is to create a barrier around the tree, such as a fence or gate, to prevent the cat from getting near it.