Cats, while sweet and loving, can also be quite jealous animals. When introducing a new cat into your house, it's important to give your cat ample time to get used to your new pet's scent. It's not like this behavior is exclusive to cats either. In fact, even kids feel jealous of their new baby brother or sister at first.
This cat's owner introduced it to a brand new stuffed animal tiger. Without taking any time to investigate whether or not this tiger was cool, her cat makes its feeling perfectly clear. If this is the cat's way of saying "Hello," it might want to work on its social skills. It looks less like a warm greeting and more like Rocky Balboa warming up on the speed bag. Their relationship might be beyond saving, but we haven't given up hope that these two can learn to coexist in the future.