Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If you make too many returns your Kindle may become a brick

Just read an article that if you get banned from Amazon for any reason, your Kindle essentially becomes useless since you can't log into your account. One guy had a few too many returns on purchased items and Amazon unilaterally banned him without warning.It kept him from being able to even access the books he already purchased. They finally resolved it after a few phone calls but reserved the right to ban him again. I am in no danger as one, I have never made any returns, and two, I do not own a Kindle. With this type of policy I may never own one.