If you're pet owner, more than likely you have played 'chase the laser pen' with your dog or cat. Not only does it provide your pet with exercise, it gives you hours of cheap entertainment!

With that in mind, it only makes sense that if you can keep yourself entertained with optical illusions, you can do the same thing with your pet. That's just what this pet owner did by printing out the 'rotating snakes illusion' and placing it in front of his cat.

YouTube unser rasmusab has now effectively entranced us, while entrancing his cat.