Instruct: Classify an Amazon review into positive or negative sentiment.
Query: The knife attacked me.

Great size, fit in my pocket nicely.The spring action is a bit aggressive and you have to cautiously think about opening it. I carry a pocket knife everyday for the last 15+ years, but this knife deserves respect.A month or so of carrying it, I used it to open a box, and then (while talking to someone) I went to close the blade. Unfortunately for me, I had it upside down and instead of pressing on the back of the blade, I pressed my thumb down on the business side. It effortlessly sliced my thumb, until I realized what was happening and it went flying across the room. Since then, it's been in a time-out in my dresser cabinet and I've been carrying an old folding knife of my grandfathers.I assumed I was mature enough in my late 30's to handle any pocket knife.............I was sorely mistaken.Purchase with caution, Respect the blade.