Sometimes walking around in a bubble isn't such a bad thing. Imagine all the dog poop you WOULDN'T get stuck in your shoe. But I guess smearing it all over your bubble isn't much better.
I don't give books star ratings; I give them bite ratings. This is a bite. A book can get up to five of these evil-looking chompers, including half bites.
You can attribute your own wording to the ratings. Five's the best, three's decent, one and under isn't worth the gas to go to the library. I'll leave it to you to fill in the blanks.