Instruct: Classify an Amazon review as either positive or negative.
Query: Stopped working after 4 pencils

I agree with the negative comments. We used this sharpener for 4 pencils before it stopped working. It didn't work again until I had unplugged it and let it sit for at least 15 minutes. In my household, my 3 children sharpen their huge big of colored pencils endlessly. This simply will not do. I did not purchase it from Amazon, but from Office Depot. It is getting returned today!