Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Use caution!

I bought Essick Air #1970 Quart Bacteria Treatment for the new humidifier I bought for the office. When it arrived, it was inside a bag, and when I took out the bottle, it was wet - it had obviously leaked sometime during the shipment. I was taking it to the sink to wipe it off, when I noticed the warning label. If the product comes in contact with your skin, you must rinse that skin (my hand in this case) for 15 to 20 minutes! And you're also supposed to call poison control or something like that (which I didn't). Apparently the stuff can cause severe burns. That was enough to make me throw it in the trash.