Instruct: Classify Amazon reviews into positive or negative sentiment
Query: do not buy this it is dangerously hot

This product is unsafe. The heat dial goes up to 20. I had it on 5 and dropped it on my arm with less than one second of contact. I received third degree burns that did not heal for three weeks and will probably leave a 1" x 3" scar on my arm for life. I can't even imagine what it would do set on 20, probably burn your hair off and anything else it touches. It should be recalled.