Well, it's not really all about her anger, more like her normal need to diminish her claws as they grow.
This gives her a large surface to scratch, better than the scratching post I had had before, and it is made of the same material, sisal, which she was used to, so she easily identified what this wavy thing was meant for. She also fell asleep on it one time!
It is a definite keeper and I recommend it because of its price and usefulness! Some cats might not like it, it's actually a matter of taste with them, but mine definitely does!